Test Bank for Precalculus 6th Us Edition by Lial

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NAME DATE

CHAPTER 2, FORM A COLLEGE ALGEBRA AND TRIGONOMETRY 1. Match the set described in Column I with the correct interval notation from Column II. Choices in Column II may be used once, more than once, or not at all.

x−3

b. Range of f ( x) = x − 3 c. Domain of f ( x ) = x 2 − 16 d. Range of y = 2 x

2

e. Domain of f ( x) = 3 x − 2 f. Range of f ( x) =

3

x +2

g. Domain of f ( x) = x + 2 h. Range of f ( x) = x + 3

b. _____________

II

c. _____________

A. ( −∞, ∞)

d. _____________

I a. Domain of f ( x ) =

1. a. _____________

[3, ∞) C. [ 0, 2] D. [ 0, ∞ ) E. [ −3, 3] F. ( −∞, −2] G. [ −3, ∞) H. [ −7, ∞ ) B.

e. _____________

f. _____________

g. _____________

i. Domain of y = 2s 2

h. _____________

j. Range of f ( x ) = x 2 − 7 i. _____________ j. _____________ The graph shows the line that passes through the points ( − 5, − 3) and ( − 1, 4). Refer to it to answer Exercises 2–6.

2. What is the slope of the line?

2.

___________________________

3. What is the distance between the two points shown?

3.

___________________________

4. What are the coordinates of the midpoint of the segment joining the two points?

4.

___________________________

5. Find the standard form of the equation of the line.

5.

___________________________

6. Write the linear function defined by f ( x) = ax + b that

6.

___________________________

has this line as its graph.

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