Answers OC27 MATH COLL ALGEBRA-1200710-S1-YACKELLinear Functions

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

f(x) is an even function for all values of m.

f(x) is an even function for all even values of m.

f(x) is an odd function for all values of m.

f(x) is an odd function for all odd values of m.

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Which of the following is an even function?

f(x) = (x – 1)2

f(x) = 8x

f(x) = x2 – x

f(x) = 7

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)?

(–6, 0), (–2, 0), and (0, 0)

(–6, 0), (–2, 0), and (4, 0)

(–4, 0), (0, 0), and (2, 0)

(–4, 0), (–2, 0), and (0, 0)

Which graph shows rotational symmetry?

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).

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).

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).

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).

If f(x) is an even function, which statement about the graph of f(x) must be true?

It has rotational symmetry about the origin.

It has line symmetry about the line y = x.

It has line symmetry about the y-axis.

It has line symmetry about the x-axis.

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

Determine whether –(x3 + 5x + 1) is equivalent to x3 + 5x + 1.

Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1.

Determine whether –x3 + 5x + 1 is equivalent to –(x3 + 5x + 1).

Determine whether (–x)3 + 5(–x) + 1 is equivalent to –(x3 + 5x + 1).

The graph of f(x) consists of 14 points. Six of the points lie in Quadrant I of the coordinate plane. If f(x) is an odd function, what is the greatest number of points that can lie in Quadrant II?

one

two

six

eight

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

Determine whether (–x)4 – (–x)3 is equivalent to x4 – x3.

Determine whether (–x4) – (–x3) is equivalent to x4 + x3.

Determine whether (–x)4 – (–x)3 is equivalent to –(x4 – x3).

Determine whether (–x4) – (–x3) is equivalent to –(x4 + x3).

Which graph represents an odd function?

On a coordinate plane, a function has two curves. The first curve is in quadrants 2 and 3 and has a minimum value of (negative 1, negative 3). The curve intersects the x-axis at (negative 2, 0) and goes to (0, 0). The second curve is in quadrants 1 and 4 and has a minimum value of (1, negative 3). The curve starts at (0, 0) and intercepts the x-axis at (2, 0).

On a coordinate plane, a curved line crosses the x-axis at (negative 4, 0), (0, 0), and (4, 0).

On a coordinate plane, a v-shaped function opens up. The function goes through (0, 2), has a vertex at (2, 0), and goes through (5, 3).

On a coordinate plane, a curve has a maximum point at (0.5, 1) and a minimum point at (2, 0). The curve goes through points (0, 0) and (3, 4).

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?

It includes points in Quadrant I.

It includes points in Quadrant II.

It does not include points in Quadrant I.

It does not include points in Quadrant II.

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