Question

For f(x) = -4x + 1, what is the output for an input of -2?

Answer 1

$\huge\boxed{\boxed{9}}$

Start with the original function:

$f(x)=-4x+1$

Substitute in the known value:

$f(-2)=-4(-2)+1$

Multiply:

$f(-2)=8+1$

Add:

$f(-2)=\large\boxed{9}$

Answer 2

Answer:

9

Step-by-step explanation:

In this type of equation, x represents the input. So, all you simply have to do is  replace x with -2 and then solve.

Input: -2

f(x) = -4x + 1

f(-2) = -4(-2) + 1

f(-2) = 8 + 1

f(-2) = 9