Question

f(x) = -x^2-20
find f(9)

Answer 1

Answer:

f ( x ) = - 101

Step-by-step explanation:

Step 1:

f ( x ) = - x² - 20   Function

Step 2:

f ( x ) = - 9² - 20      Substitute x

Step 3:

f ( x ) = - 81 - 20    Exponents

Answer:

f ( x ) = - 101   Subtract

Hope This Helps :)