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College Algebra Chp. 2
Test Description: Functions
Instructions: Answer all questions to get your test result.
1) What is the domain of f?
A
(-infinity, 6)
B
(-infinity, +infinity)
C
(-2, 2)
D
(-infinity, 1)
2) What is the range of f?
A
(-infinity, 1)
B
(-infinity, +infinity)
C
(-3, 1)
D
(-5, 5)
3) What is f(0)?
A
-1
B
1
C
3
D
0
4) What are the zeros (x-intercepts) of f?
A
-2 and 2
B
0
C
-3 and 3
D
1
5) What is the y-intercept of f?
A
none
B
1
C
-1
D
0
6) What are the intervals of increasing?
A
(-infinity, 1)
B
(-infinity, -2)
C
(2, infinity)
D
(-2, 2)
7) What are the intervals of decreasing?
A
(-2, 2)
B
(2, +infinity)
C
(1, +infinity)
D
(2, -infinity)
8) What are the intervals of constant?
A
(0, 1)
B
(-3, 3)
C
(-2, 2)
D
none
9) Is f even, odd, or neither?
A
odd
B
even
C
neither
10) Determine the maximum of f(x) = -x^2 + 4.
A
No maximum
B
(0,4)
C
(4,0)
D
(0,-4)
11) Which word does NOT describe domain?
A
input
B
across
C
up and down
D
x values
12) Which relation is NOT a function?
A
(1, 2) (2, 3) (2, 3) (4, 6)
B
(3, 1) (4, 2) (6, -2) (3, 7)
C
(1, 1) (2, 2) (3, 3)
D
(6, 0) (4, 0) (-2, 0) (1, 0)
13) If f(x) = 3x^2 - 7x find f(-2)
A
-2
B
-26
C
26
D
2
14) What is the slope of the line 6x - 2y = 12
A
6
B
3
C
-6
D
-3
15) Describe the lines as parallel, perpendicular, or neither: y = 3x + 7 and 8y = -24x + 32
A
neither
B
parallel
C
perpendicular
*select an answer for all questions
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