Question

If $$p(x) = x + 4$$, then $$p(x) + p(-x) = ?$$

Options

• 0

• 2x

• 8

• – 8

Answer 1

8

Explanation:

$$p(x) + p(-x) = (x + 4) + (-x + 4) = 8$$, so 8 is correct. The other choices would require different values of $$p(x)$$.