g(5) when g(x) = 4x +7

Question

evaluate g(5) when g(x) = 4x +7

Answer 1

Hi Gayla,

When the problem asks you to evaluate g(5), this simply means you look at the function g(x) and replace all the x's with a 5 and then solve.  Since

g(x) = 4x+7,

substitute x=5 and you'll get

g(5) = 4*5+7 = 20+7 = 27

So your final answer is

g(5) = 27