Question

What is the value of f(–1) when f(x) = 2x + 2?

Answer 1

0
Put the 1 in the parenthesis, multiply =2(-1)+2
Then add= -2+2

Answer 2

If f(x) = 2x + 2, to solve f(-1) we want to substitute -1 for x. So f(-1) = 2(-1) + 2 = -2 + 2 = 0

Explanation: