Question

9. Find the value of f(x) = 3x - x + 23 for x= 4

Answer 1

31

Step-by-step explanation:

Given f(x) defined as follows:

`f\mleft(x\mright)=3x-x+23`

When x=4

`\begin{gathered} f(4)=3(4)-4+23 \\ =12-4+23 \\ =8+23 \\ =31 \end{gathered}`

The value of f(x) when x=4 is 31.