Question

For g(x)= 9x-5, find g(3) and g( -5/9)(Simplify Answer)

Answer 1

$g(3)=22$

$g(-\frac{5}{9})=-10$

Explanation

Evaluating a function means to substitute a variable with its given number or expression and calculate

$g(x)=9x-5$

Step 1

when x= 3, so

replace the x place with 3

$\begin{gathered} g(x)=9x-5 \\ g(3)=9(3)-5 \\ g(3)=27-5 \\ g(3)=22 \end{gathered}$

hence

$g(3)=22$

Step 2

when

$x=-\frac{5}{9}$

replace

$\begin{gathered} g(x)=9x-5 \\ g(-\frac{5}{9})=9(-\frac{5}{9})-5 \\ g(-\frac{5}{9})=-5-5 \\ g(-\frac{5}{9})=-10 \end{gathered}$

therefore

$g(-\frac{5}{9})=-10$

I hope this helps you