Question

Need help with these. I get either -16 or 16, but it can be both. for the first one

Answer 1

Given

To find:

The value of a) f(-4), b) f(0), c) f(3).

Step-by-step explanation:

It is given that,

That implies,

For x=-4,

`\begin{gathered} f(-4)=(-4)^2 \\ =-4*-4 \\ =16 \end{gathered}`

For x=0, f(0) = -3.

For x=3,

`\begin{gathered} f(3)=2(3)+3 \\ =6+3 \\ =9 \end{gathered}`

Hence, the answers are a) 16, b) -3, c) 9.