8 . C
The right side of this equation is the reciprocal of the reciprocal of x–^3 :9 . A
To make a 45-degree angle with the x-axis, a line must have a slope of 1
or –1. Of the given choices, only (A) and (B) have such a slope, and of
those, only (A) has a y-intercept of 2.10 . D
(A) is always even because the product of an even and an odd is even. (B)
is always even because the sum of an even and twice an odd is even. (C)
is always even because no matter what positive integer exponent you
raise an even number to, the result will be even. (D), on the other hand, is
always odd because no matter what positive integer exponent you raise