Symmetry Answers

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1
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The graph of the even function f(x) has five x-intercepts. If (6, 0) is one of the intercepts, which set of points can be the other x-intercepts of the graph of f(x)?

A
(–6, 0), (–2, 0), and (0, 0)
B
(–6, 0), (–2, 0), and (4, 0)
C
(–4, 0), (0, 0), and (2, 0)
D
(–4, 0), (–2, 0), and (0, 0)
2
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Which of the following is an even function?

A
f(x) = |x|
B
f(x) = x3 – 1
C
f(x) = –3x
D
f (x) = RootIndex 3 StartRoot x EndRoot
Option D
3

Which graph shows rotational symmetry?

A
On a coordinate plane, a sine curve goes through one cycle and is represented by f (x). The curve has a minimum of (2, negative 2), a maximum of (negative 2, 2), and goes through (0, 0).
Option A
B
On a coordinate plane, the function g(x) has two connected curves. The first curve goes through point (negative 3, negative 2) to (0, 0). The second curve goes from (0, 0) through (2, 3).
Option B
C
On a coordinate plane, the function h (x) is a v shape that opens down. The function has a vertex at (0,0) and goes through (negative 4, negative 4) and (4, negative 4).
Option C
D
On a coordinate plane, a parabola opens up. It goes through (negative 2, 4), has a vertex at (0, 0), and goes through (2, 4).
Option D
4

If f(x) = (xm + 9)2, which statement about f(x) is true?

A
f(x) is an even function for all values of m.
B
f(x) is an even function for all even values of m.
C
f(x) is an odd function for all values of m.
D
f(x) is an odd function for all odd values of m.
5

Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function?

A
Determine whether –(x3 + 5x + 1) is equivalent to x3 + 5x + 1.
B
Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1.
C
Determine whether –x3 + 5x + 1 is equivalent to –(x3 + 5x + 1).
D
Determine whether (–x)3 + 5(–x) + 1 is equivalent to –(x3 + 5x + 1).
7

If f(x) is an odd function and the graph of f(x) includes points in Quadrant IV, which statement about the graph of f(x) must be true?

A
It includes points in Quadrant I.
B
It includes points in Quadrant II.
C
It does not include points in Quadrant I.
D
It does not include points in Quadrant II.
8

Which of the following is an even function?

A
f(x) = (x – 1)2
B
f(x) = 8x
C
f(x) = x2 – x
D
f(x) = 7
9

Which statement best describes how to determine whether f(x) = x4 – x3 is an even function?

A
Determine whether (–x)4 – (–x)3 is equivalent to x4 – x3.
B
Determine whether (–x4) – (–x3) is equivalent to x4 + x3.
C
Determine whether (–x)4 – (–x)3 is equivalent to –(x4 – x3).
D
Determine whether (–x4) – (–x3) is equivalent to –(x4 + x3).
10

Suppose f(x) is a function such that if p < q, f(p) < f(q). Which statement best describes f(x)?

A
f(x) can be odd or even.
B
f(x) can be odd but cannot be even.
C
f(x) can be even but cannot be odd.
D
f(x) cannot be odd or even.

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