Question

F(x) = -x^2-12 find f(-3)

Answer 1

Answer:

$\boxed {\boxed {\sf f(-3)= -21}}$

Step-by-step explanation:

We are given the function:

$f(x)= -x^2-12$

We want to find f(-3), so we must substitute -3 in for x.

$f(-3)= -(-3)^2 -12$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Addition, Subtraction.

Solve the exponent.

• (-3)²= -3*-3 = 9

$f(-3)= -(9)-12$

Distribute the -1 in.

$f(-3)= -9-12$

Subtract.

$f(-3)= -21$

For the function -x²-12, f(-3) is equal to 21

Answer 2

Answer:

-1 * (-3)^2 - 12 = -1 * 9 -12 = -9 - 12 = -21

Step-by-step explanation: