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).

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step-by-step explanation:

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b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)