Question

What is the value of f(-1) when f(x) = 2x + 2? Enter your answer in the box.

f(-1)=???​

Answer 1

`\boxed{ \rm f( - 1) = 0}`

Explanation:

`\rm \longrightarrow f(x) = 2x + 2 \\ \\ \rm \longrightarrow f( - 1) = 2( - 1) + 2 \\ \\ \rm \longrightarrow f( - 1) = - 2 + 2 \\ \\ \rm \longrightarrow f( - 1) = 0`

Answer 2

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

f(-1)=-2+2

f(-1)=0

Explanation: