Question

find the value of f(4) for the function 1. f(x)=-3(x+3)f(4)=____ simplify your answerfind the value of f(3) for the function2. f(a)=4(a+3)-2f(3)=____ simplify your answerfind the value of f(3) for the function3. f(x)=-5(x+3)f(3)=_____ simplify your answer

Answer 1

1.must replace the value of x on the fucition and solve

$\begin{gathered} f(x)=-3(x+3) \\ f(4)=-3(4+3) \\ f(4)=-3(7) \\ f(4)=-21 \end{gathered}$

2.must replace the value of a on the fucition and solve

$\begin{gathered} f(a)=4(a+3)-2 \\ f(3)=4(3+3)-2 \\ f(3)=4(6)-2 \\ f(3)=24-2 \\ f(3)=22 \end{gathered}$

3.must replace the value of x on the fucition and solve

$\begin{gathered} f(x)=-5(x+3) \\ f(3)=-5(3+3) \\ f(3)=-5(6) \\ f(3)=30 \end{gathered}$