Question

Evaluate each function.
14) g(x)= 3x² - 1; Find g(-3)

Answer 1

g(26)

Explanation:

substitute -3 for x.

g(x)=3
`x^(2)`-1

`g(-3)=3(-3)^(2) -1\\g(-3)= 3(9)-1\\g(-3)= 27-1\\g(-3)=26`

Answer 2

`g(x) =3x^2 -1\\\\g(-3)=3(-3)^2 -1 \\ \\~~~~~~~~~=3(9) -1 \\\\~~~~~~~~~=27-1\\\\~~~~~~~~~=26`