College Algebra Chp. 2 Question Preview (ID: 21830)


Functions. TEACHERS: click here for quick copy question ID numbers.

What is the domain of f?
a) (-infinity, +infinity)
b) (-2, 2)
c) (-infinity, 1)
d) (-infinity, 6)

What is the range of f?
a) (-infinity, 1)
b) (-infinity, +infinity)
c) (-3, 1)
d) (-5, 5)

What is f(0)?
a) 0
b) 1
c) -1
d) 3

What are the zeros (x-intercepts) of f?
a) 1
b) -3 and 3
c) -2 and 2
d) 0

What is the y-intercept of f?
a) 1
b) -1
c) 0
d) none

What are the intervals of increasing?
a) (2, infinity)
b) (-2, 2)
c) (-infinity, -2)
d) (-infinity, 1)

What are the intervals of decreasing?
a) (2, +infinity)
b) (1, +infinity)
c) (-2, 2)
d) (2, -infinity)

What are the intervals of constant?
a) (0, 1)
b) (-3, 3)
c) (-2, 2)
d) none

Is f even, odd, or neither?
a) even
b) odd
c) neither
d)

Determine the maximum of f(x) = -x^2 + 4.
a) (4,0)
b) (0,-4)
c) (0,4)
d) No maximum

Which word does NOT describe domain?
a) input
b) x values
c) across
d) up and down

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)

If f(x) = 3x^2 - 7x find f(-2)
a) 2
b) -2
c) -26
d) 26

What is the slope of the line 6x - 2y = 12
a) 6
b) -3
c) 3
d) -6

Describe the lines as parallel, perpendicular, or neither: y = 3x + 7 and 8y = -24x + 32
a) parallel
b) perpendicular
c) neither
d)

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