Question

Several polynomial functions are graphed. Which graph displays a polynomial function with all even exponents?

(in the picture)

Answer 1

B.

Explanation:

The correct answer is B. A power function with odd exponents will have origin symmetry.

Answer 2

A polynomial function with all even exponents is so-called even function.
Even functions are symmetric across the y-axis.
Answer: Only one that is symmetric across the x-axis is the function C ).