Question

Evaluate f ( - 6 ) for the function f( x ) = 4(x + 2) + 13.

Answer 1

f(-6)=-3

Explanation:

We want to find f(x), or y, when x is equal to -6. To do this, substitute -6 in for x.

f( x ) = 4(x + 2) + 13

f(-6) = 4(-6 + 2) + 13

Solve inside the parentheses

f(-6) = 4(-6 + 2) + 13

f(-6) = 4(-4) + 13

Multiply 4 and -4

f(-6) = -16 + 13

Add -16 and 13

f(-6) = -3