Question

Question will be in picture

Answer 1

Given:

The function is, f(x) = 3x+2.

The domain is, {-2, -1, 2}.

The objective is to find the range of the function.

If domain is, x = -2,

`\begin{gathered} y=3x+2 \\ y=3(-2)+2 \\ y=-6+2 \\ y=-4 \end{gathered}`

If domain is, x = -1,

`\begin{gathered} y=3x+2 \\ y=3(-1)+2 \\ y=-3+2 \\ y=-1 \end{gathered}`

If domain is, x = 2,

`\begin{gathered} y=3x+2 \\ y=3(2)+2 \\ y=8 \end{gathered}`

Thue, the domain is {-4, -1, 8}.

Hence, option (b) is the correct answer.