Type:
Test Bank
College Algebra in Context with Applications for the Resource: Managerial, Life, and Social Sciences Edition:
6th Edition
Author(s):
Ronald J. Harshbarger Lisa S. Yocco
Exam Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Determine whether or not the relationship shown in the table is a function. 1) x -3 1 6 8 12 y 8 7 -1 8 -1 Does the table define y as a function of x? A) Yes
B) No
2) x -1 y
1)
1 5 8 10 6 -8 -5 6 1
2)
Does the table define x as a function of y? A) Yes
B) No
3) x -6 -6
2 6 9 y -2 -9 -5 -3 -1
3)
Does the table define x as a function of y? A) Yes
B) No
4)
4) x y 1 9 5 13 1 2 1 1 Does the table define y as a function of x? A) Yes
B) No
5)
5) Name Test Score Bob L. 95 Susan H. 83 Jim H. 76 Bruce B. 96 Does the table define test score as a function of name? A) Yes B) No
1
6)
6) January 1 2 3 4 5 6 7 Weight (lbs) 218 217 219 218 217 216 215 Does the table define weight as a function of the day in January? A) Yes B) No
7)
7) January 1 2 3 4 5 6 7 Weight (lbs) 220 219 221 220 219 218 217 Does the table define the day in January as a function of weight? A) Yes B) No
8)
8) Number of Classes Missed 1 2 3 4 5 6 7 Average Final Exam Score 66 64 67 60 59 56 51 Does the table define the average final exam score as a function of the number of classes missed? A) Yes B) No
9)
9) Number of Classes Missed 1 2 3 4 5 6 7 Average Final Exam Score 71 69 72 65 64 61 56 Does the table define the number of classes missed as a function of the average final exam score? A) Yes B) No
10)
10) Down payment (%) 5 10 20 25 Price of Home ($) 102,700 122,900 158,400 169,000 Does the table define the price of a home that a particular family can afford as a function of the percent down payment? A) Yes B) No
Use the table to answer the question. -6 -4 -1 11) x y = f(x) -25 -19 -10
0 -7
1 -4
7 14
15 38
Is -4 an input or output of this function? A) Output
B) Input
2
11)
12) x
y = f(x)
-7 -28
-2 -13
-1 -10
0 -7
1 -4
4 5
18 47
Is f(18) an input or output of this function? A) Input
13) x
y = g(x)
-4 1
0 9
1 11
6 21
10 29
17 43
B) Output 34 77
13)
Is 34 an input or output of this function? A) Input
14) x
y = g(x)
-3 3
0 9
1 11
6 21
13 35
12)
B) Output 19 47
33 75
14)
Is g(6) an input or output of this function? A) Input
B) Output
Evaluate the function. 15) Given f(x) = -8x - 5, find f(-18). A) 139 B) -8
15) C) 149
D) -149
16) Given f(x) = (x + 3)2 , find f(7). A) 16 B) 100
C) 20
D) -100
17) Given f(x) = -4x2 + 2x + 5, find f(-2). A) -15 B) -9
C) 9
D) -20
18) Given f(x) = x2 - 3x + 2, find f(-2). A) 8 B) -4
C) 0
D) 12
16)
17)
18)
19)
19)
For the function y = f(x) described by the table, find f(1). A) -2 B) -5 C) 0
3
D) Not shown
20)
20)
For the function y = f(x) described by the table, find f(2). A) 0 B) 2 C) 7
D) Not shown
21)
21)
For the function y = f(x) described by the table, find f(2). A) 7 B) 13 C) 10
D) 16
22)
22)
If y = f(x), find f(1). A) 1
B) 2
C) -2
4
D) 0
23)
23)
If y = f(x), find f(-1). A) 2
C) 3
B) -2
D) -3
24)
24)
If y = f(x), find f(-2). A) -1
B) 4
C) 1
5
D) -4
State whether the graph is or is not that of a function.
25)
25)
A) Yes
B) No
26)
26)
A) Yes
B) No
27)
27)
A) Yes
B) No
6