Question

F(x)= -x^2+19 find f(3)

Answer 1

Answer:

$\boxed {\tt f(3)= 10}$

Step-by-step explanation:

We are given the function:

$f(x)= -x^2+19$

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

$f(3)= -(3)^2+19$

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. Evaluate the exponent.

• (3)² = 3*3 = 9

$f(3)= -(9)+19$

$f(3)=-9+19$

Add 19 to -9.

$f(3)= 10$

For the function f(x)=-x²+19, f(3)= 10

Answer 2

I’m not sure but this could help