Question

HELP I DONT UNDERSTAND THEIS QUESTIIONS

Answer 1

1) f(x)-3

`\begin{gathered} f(x)=2x-4 \\ \Rightarrow f(x)-3=2x-4-3 \end{gathered}`

Therefore, f(x)-3=2x-4-3

2) f(x-3)

`\Rightarrow f(x-3)=2(x-3)-4`

Thus, f(x-3)=2(x-3)-4

3) f(-3x)

`f(-3x)=2(-3x)-4`

Then, f(-3x)=2(-3x)-4

4) -3f(x)

`-3f(x)=-3(2x-4)`

Hence, -3f(x)=-3(2x-4)