Question

I need help on this question? Can I watch you solve to see how I solve these kind of problems?

Answer 1

The function given is

$f(x)=-3x+4$

We are asked to evaluate

$f(x+3)$

To calculate the function f(x+3), we will have to substitute the value of x with x+3 into the f(x)

$\begin{gathered} f(x)=-3x+4 \\ f(x+3)=-3(x+3)+4 \\ f(x+3)=-3x-9+4 \\ f(x+3)=-3x-5 \end{gathered}$

Hence,

f(x+3) = -3x-5