Question

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

f(–1) =

Answer 1

-3/2 = f

Explanation:

f(-1) =2x+2

-1f=2x+2

-1f-2=2x

-3=2x

-3/2=x

Answer 2

Answer: f(-1)= 0

Explanation:

f(-1)

x=(-1)

f(-1) = 2x + 2

f(-1) = 2(-1) + 2

2 x (-1) = -2

-2 +2 = 0