Test Bank for Precalculus A Right Triangle Approach 4th Us Edition by Ratti

Page 1


1) Give the coordinates of the points on the following graph. 1)

2) Determine the a) domain and b) range of the function graphed below. 2)

3) Find the distance and midpoint between  4,3 and   10,11. 3)

4) Write the equation of the circle centered at   5,7 with a radius of 9. 4)

5) Find the equation of the line passing through  5,3 with slope 2. Write the solution in slope-intercept form. 5)

6) Find the x- and y-intercepts of 2 20 yxx . 6)

7) Determine the equation of the circle in standard form described by 2246360. xxyy 7)

8) Find the equation of the line passing through   3,7 and   1,5. Write the solution in slope-intercept form. 8)

9) Find the domain of  2 215.fxxx Write the answer using interval notation. 9)

10) Find  1 fx for   411.fxx 10)

11) Find the equation of the line parallel to 325 xy  passing through   3,2. Write the solution in slope-intercept form. 11)

12) Given the following graph determine: a) where is the graph increasing, b) where is the graph decreasing, and c) where is the graph constant.

12)

13) Determine which symmetries the graph of 4234xy possesses. 13)

14) 2 For 239,fxx list the transformations to the basic graph and graph the function.

15) Find the linear regression equation for the following data. Round the constants to two decimal places.

x 2 8 16 18 24 26

14)

y 4 13 18 27 31 34 15)

16) Given  2 25fxx and   5, gxx find 

  , fgx  and determine its domain. 16)

17) Write the formula for the graph of   fx below. 17)

18) Find the average rate of change of  2 9 fxx as x changes from 1 to 5. ab 18)

19) Graph  1if3 5if3 xx fx x

Find the value of

20) Find 

3,

fxhfx h  for  2 2.fxxx  20)

21) A company that produces toy cars has a monthly a monthly cost of 1500 dollars and a marginal cost of 3 dollars per toy car. The company makes 8 dollars per toy car in revenue.

a) Find the function,   Cx , that represents the cost of producing x toy cars.

b) Find the function,   Rx , that represents the revenue from selling x toy cars.

c) Find the function,   Px , that represents the profit from selling x toy cars.

d) What would the profit be from selling 2500 toy cars? 21)

1) Give the coordinates of the points on the following graph. 1)

2) Determine the a) domain and b) range of the function graphed below. 2)

3) Find the distance and midpoint between   5,7 and   1,1. 3)

4) Write the equation of the circle centered at   7,9 with a radius of 6. 4)

5) Find the equation of the line passing through  4,3 with slope 5. Write the solution in slope-intercept form. 5)

6) Find the x- and y-intercepts of 5100.yx 6)

7) Determine the equation of the circle in standard form described by 2210850. xxyy 7)

8) Find the equation of the line passing through  4,1 and   1,3. Write the solution in slope-intercept form. 8)

9) Find the domain of  2 412.fxxx Write the answer using interval notation. 9)

10) Find  1 fx for   38.fxx 10)

11) Find the equation of the line perpendicular to 237 xy passing through   4,7. Write the solution in slope-intercept form. 11)

12) Given the following graph determine: a) where is the graph increasing, b) where is the graph decreasing, and c) where is the graph constant.

12)

13) Determine which symmetries the graph of 24 5 yxx  possesses. 13)

14)  2 1 2 For 54, fxx list the transformations to the basic graph and graph the function. 14)

15) Find the linear regression equation for the following data. Round the constants to two decimal places.

x 3 5 13 17 26 37

y 9 7 22 18 30 45 15)

16) Given  2 2 1 7 fxx x    and   7, gxx find 

  , fgx  and determine its domain. 16)

Chapter 2 Test Form B Name ________________________ Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

17) Write the formula for the graph of   fx below. 17)

18) Find the average rate of change of  3 314fxx as x changes from 1 to 2. ab 18)

19) Graph  3if2 3if2 xx fx x

Find the values of   4, f   2, f and

2. f 19)

20) Find 

fxhfx h  for  2 32.fxxx  20)

21) A company that produces toy cars has a monthly a monthly cost of 2000 dollars and a marginal cost of 8 dollars per toy car. The company makes 15 dollars per toy car in revenue.

a) Find the function,   Cx , that represents the cost of producing x toy cars.

b) Find the function,   Rx , that represents the revenue from selling x toy cars.

c) Find the function,   Px , that represents the profit from selling x toy cars.

d) What would the profit be from selling 3250 toy cars? 21)

1) Give the coordinates of the points on the following graph. 1)

2) Determine the a) domain and b) range of the function graphed below. 2)

3) Find the distance and midpoint between  8,5 and   4,9. 3)

4) Write the equation of the circle centered at   2,9 with a radius of 3. 4)

5) Find the equation of the line passing through   1,2 with slope 3. Write the solution in slope-intercept form. 5)

6) Find the x- and y-intercepts of 5 232.yx 6)

7) Determine the equation of the circle in standard form described by 2261090. xxyy 7)

8) Find the equation of the line passing through  2,1 and   4,4. Write the solution in slope-intercept form. 8)

9) Find the domain of  2 224.fxxx Write the answer using interval notation. 9)

10) Find  1 fx for   85.fxx 10)

11) Find the equation of the line parallel to 534 xy passing through   10,3. Write the solution in slope-intercept form. 11)

12) Given the following graph determine: a) where is the graph increasing, b) where is the graph decreasing, and c) where is the graph constant.

12)

13) Determine which symmetries the graph of 32 48 xyx  possesses. 13)

14) 2 For 329,fxx list the transformations to the basic graph and graph the function. 14)

15) Find the linear regression equation for the following data. Round the constants to two decimal places.

x 8 10 15 16 22 35 y 11 14 19 19 25 41 15)

16) Given  2 32fxx and   7,gxx  find     , fgx  and determine its domain. 16)

Chapter 2 Test Form C Name ________________________ Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

17) Write the formula for the graph of   fx below. 17)

18) Find the average rate of change of  2 115 fxx  as x changes from 3 to 5. ab 18)

19) Graph  3if4 1if4 x

Find the values of

20) Find 

4,

and

fxhfx h  for  2 47. fxxx  20)

21) A company that produces toy cars has a monthly a monthly cost of 1800 dollars and a marginal cost of 5 dollars per toy car. The company makes 13 dollars per toy car in revenue.

a) Find the function,   Cx , that represents the cost of producing x toy cars.

b) Find the function,   Rx , that represents the revenue from selling x toy cars.

c) Find the function,   Px , that represents the profit from selling x toy cars.

d) What would the profit be from selling 1500 toy cars? 21)

1) Give the coordinates of the points on the following graph. 1)

2) Determine the a) domain and b) range of the function graphed below. 2)

3) Find the distance and midpoint between  6,1 and   4,9. 3)

4) Write the equation of the circle centered at  7,8 with a radius of 11. 4)

5) Find the equation of the line passing through  2,3 with slope 4. Write the solution in slope-intercept form. 5)

6) Find the x- and y-intercepts of 3 27. yx 6)

7) Determine the equation of the circle in standard form described by 22148560. xxyy 7)

8) Find the equation of the line passing through   1,2 and   4,2. Write the solution in slope-intercept form. 8)

9) Find the domain of  2 310.fxxx Write the answer using interval notation. 9)

10) Find  1 fx for   115. fxx  10)

11) Find the equation of the line perpendicular to 435 xy  passing through   8,5. Write the solution in slope-intercept form. 11)

12) Given the following graph determine: a) where is the graph increasing, b) where is the graph decreasing, and c) where is the graph constant.

12)

13) Determine which symmetries the graph of 2753yxx  possesses. 13)

14) 2 For 256,fxx list the transformations to the basic graph and graph the function. 14)

15) Find the linear regression equation for the following data. Round the constants to two decimal places.

x 10 18 22 29 30 39 y 19 22 28 30 38 45 15)

16) Given  2 2 3 fxx x   and   2, gxx find 

  , fgx  and determine its domain. 16)

Chapter 2 Test Form D Name ________________________ Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

17) Write the formula for the graph of   fx below. 17)

18) Find the average rate of change of  2 27fxx as x changes from 5 to 4. ab 18)

19) Graph  3if1 5if1

Find the values of

20) Find 

fxhfx h

for  3 fxxx

1, f and

5. f 19)

21) A company that produces toy cars has a monthly a monthly cost of 2400 dollars and a marginal cost of 10 dollars per toy car. The company makes 25 dollars per toy car in revenue.

a) Find the function,   Cx , that represents the cost of producing x toy cars.

b) Find the function,   Rx , that represents the revenue from selling x toy cars.

c) Find the function,   Px , that represents the profit from selling x toy cars.

d) What would the profit be from selling 600 toy cars? 21)

In exercises 1–2, refer to the graph to the right.

1) What are the coordinates of point A?

2) What are the coordinates of point B?

a)

In exercises 3–4, refer to the graph to the right.

3) Determine the domain of the function.

4) Determine the range of the function.

In exercises 5–6 use the points

2,3 and

5) Find the distance between the points.

6) Find the midpoint between the points.

7) Write the equation of the circle centered at  7,1 with a radius of 2.

8) Find the equation of the line passing through   1,4 with slope 3.

9) Find the coordinates of the x- and y-intercepts of 2 42. yxx a)

42,0,0,6,0,7

0,42,7,0,6,0

10) Determine the equation of the circle described by 22810590. xxyy a)

22 81059xy

22 45100xy

11) Find the equation of the line passing through

627yx

12) Find the domain of  2 514.fxxx

4,3 and

22 4541

22 4559

2,4.

Given

14) Find the equation of the line parallel to 2513 xy passing through   5,3. a) 531 22yx b) 2 5 5 yx c)

In exercises 15–17, refer to the graph to the right.

15) When is the graph increasing?

a)   2,2 b)   6,9

c)

,22,6 È d) never

16) When is the graph decreasing?

a)   2,2 b)   6,9

c)  

 ,22,6 È d) never

17) When is the graph constant?

a)   2,2 b)   6,9

c)

,22,6 È d) never 15) 16) 17)

18) Determine which symmetries the graph of 234 xyxxy  possesses.

a) x-axis b) y-axis c) origin d) all 18)

Chapter 2 Test Form E Name ________________________

19) Graph 2 232.fxx

20) Which of the following is not a transformation of the basic function in  2 1 2 31? gxx

a) vertical shift of 1 down b) vertical reflection c) vertical stretch of 1 2 d) horizontal shift of 3 to the left 20)

21) Find the linear regression equation for the following data.

a) 0.922.59yx b) 8.000.91yx c) 2.590.92yx d) 0.918.00yx x 19 23 29 30 37 38 y 24 32 30 38 44 41

22) Given  2 74fxx and

a) 2 47; x

8,gxx  find

fgx

and determine its domain.

,  b) 2 47; x

c) 607; x  ,8 d) 607; x   8, 

 ,8

Chapter 2 Test Form E Name ________________________ Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

23) Write the formula for the function graphed to the right.

a)   345fxx

b)  1 45 3 fxx

c)

d)

 245fxx

 345fxx

24) Find the average rate of change of  2 2 fxxx  as x changes from 4 to 3. ab a) 277 b) 57 c) 3 d) 21

In exercises 25–27, use

25) Graph

. fx

26) Determine the value of 

27) Determine the value of 

28) Find

A company that produces toy cars has a monthly a monthly cost of 2300 dollars and a marginal cost of 4 dollars per toy car. The company makes 11 dollars per toy car in revenue. With this information, answer exercises 29–32.

29) Find the function,   Cx , that represents the total cost of producing x toy cars.

30) Find the function,   Rx , that represents the revenue from selling x toy cars.

31) Find the function,   Px , that represents the profit from selling x toy cars.

32) What would the profit be from selling 1150 toy cars?

In exercises 1–2, refer to the graph to the right.

1) What are the coordinates of point A?

2) What are the coordinates of point B?

a)

In exercises 3–4, refer to the graph to the right.

3) Determine the domain of the function.

4) Determine the range of the function.

In exercises 5–6, use the points

4,4 and

5) Find the distance between the points.

6) Find the midpoint between the points.

7) Write the equation of the circle centered at   5,2 with a radius of 5.

8) Find the equation of the line passing through   5,4 with slope 3.

9) Find the coordinates of the x- and y-intercepts of 3 9216.yx

10) Determine the equation of the circle described by 2268560. xxyy

22 6856

11) Find the equation of the line passing through   3,2 and   2,5.

739 55yx

12) Find the domain of  2

Write your answer using interval notation.

13) Given  4 5 fx x 

14) Find the equation of the line perpendicular to 4311 xy  passing through   6,5.

In exercises 15–17, refer to the graph to the right.

15) When is the graph increasing?

a)  

 ,25,9 È b)  2,5

c)   2,2 d) never

16) When is the graph decreasing? a) 

  ,25,9 È b)  2,5

c)   2,2 d) never

17) When is the graph constant?

  ,25,9 È b) 

2,5

c)   2,2 d) never 15) 16) 17)

18) Determine which symmetries the graph of 224 xyyx  possesses.

a) x-axis b) y-axis c) origin d) all

Chapter 2 Test Form F Name ________________________

Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

19) Graph  2 1 2 35. fxx

20) Which of the following is not a transformation of the basic function in 2 327?gxx

a) vertical stretch of 1 3 b) vertical reflection c) horizontal shift of 2 to the right d) vertical shift of 7 up

21) Find the linear regression equation for the following data.

x 10 14 16 17 25 35 y 16 23 22 20 32 39

22) Given

and determine its domain.

Chapter 2 Test Form F Name ________________________

Ratti & McWaters, CollegeAlgebraandTrigonometry, 4th edition

23) Write the formula for the function graphed to the right.

a)   232fxx

b)

 232fxx

c)  1 32 2 fxx

d)

232fxx

24) Find the average rate of change of  3 8 fxxx  as x changes from 2 to 1. ab

a) 33 b) 13 c) 5 d) 11

In exercises 25–27, use

25) Graph

26) Determine the value of   3. f

27) Determine the value of   8. f

28) Find

fxhfx h

A company that produces toy cars has a monthly a monthly cost of 3300 dollars and a marginal cost of 14 dollars per toy car. The company makes 32 dollars per toy car in revenue. With this information, answer exercises 29–32.

29) Find the function,

Cx , that represents the total cost of producing x toy cars.

30) Find the function,   Rx , that represents the revenue from selling x toy cars.

31) Find the function,   Px , that represents the profit from selling x toy cars.

32) What would the profit be from selling 750 toy cars?

2)

Chapter 2 Tests

1 11 4 fxx

11) 313 22yx

2,3; c)

13) -axis, -axis, origin xy

14)

Horizontal Shift: Right 3

Vertical Shift: Up 9

Vertical Stretch: 2

Vertical Reflection: Yes

15) 1.231.94yx 16) 

 215;fgxx 

5,  17)   224fxx 18) 4 19)

32,34,65fff

20) 22xh 

21) a)   31500Cxx b)   8 Rxx  c)   51500Pxx d) $11,000

1)

2)

6)

9,62,3;

13) -axis y 14)

Horizontal Shift: Left 5

Vertical Shift: Down 4

Vertical Stretch: 1 2

Vertical Reflection: No

8 ; 14 fgxx x  

7,  17)   1 5 14 fxx 18) 9 19)

43,23,21fff 

20) 432xh 21) a)   82000Cxx b)   15 Rxx  c)   72000Pxx d) $20,750

1)

2)

,46,8;

13) -axis x 14)

Horizontal Shift: Left 2

Vertical Shift: Down 9

Vertical Stretch: 3

Vertical Reflection: No 15) 1.092.30yx 16)

45,43,83fff

20) 874xh 

21) a)   51800Cxx b)   13 Rxx  c)

81800Pxx d) $10,200

Chapter 2 Tests

2)

3) Distance: 102; Midpoint:

5) 411yx

4,6; c)

2,4

13) origin

14)

Horizontal Shift: Left 5;

Vertical Shift: Up 6

Vertical Stretch: 2

Vertical Reflection: Yes 15) 0.927.65yx 16)  2 ; 1 fgxx x 

1 2 43 fxx 18) 2 19)

14,15,55fff

20) 31322 xhxh 

21) a)   102400Cxx b)   25 Rxx  c)   152400Pxx d) $6600

Tests

B

B

D

C

B

B

B

D

Form E 1) A 2) B 3) B 4) D 5) D 6) B 7) B 8) A 9) D 10) C 11) C 12) C 13) C 14) D 15) A 16) B 17) C 18) D

D 23) B 24) D

B

B

C

D

C

C

A

Form F 1) A 2) A 3) A 4) C 5) A 6) A 7) D 8) D 9) B 10) B 11) B 12) D 13) A 14) A 15) B 16) C 17) A 18) A 19) C 20) A 21) A

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