How to find f(-3) given f(x)=2x+2?

Autumn Hebert

Autumn Hebert

Answered question

2023-02-28

How to find f ( - 3 ) given f ( x ) = 2 x + 2 ?

Answer & Explanation

repicotit48p

repicotit48p

Beginner2023-03-01Added 3 answers

Given solution: Simply substitute the value of - 3 given. In other words, f ( - 3 ) is the function of f ( x ) , however in this case, x is - 3
f ( - 3 ) = 2 ( - 3 ) + 2
Distribute 2 through the parenthesis
f ( - 3 ) = - 6 + 2
Simplify
f ( - 3 ) = - 4
Dillan Perez

Dillan Perez

Beginner2023-03-02Added 6 answers

We could replace - 3 for x and simplify:
f ( x ) = 2 x + 2
f ( - 3 ) = 2 ( - 3 ) + 2
f ( - 3 ) = - 6 + 2
f ( - 3 ) = - 4
So f ( - 3 ) = - 4 .

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