I'm pretty sure you meant:
To evaluate a function at a certain value, you just have to plug that certain value into the function. Basically, replace all x's with the one given. Let's do f(x) first:
So, for f(x), your answer is -50.
Let's do the exact same thing for g(x):
Your answer for g(x) is -12.
Hopefully, this makes sense!
To evaluate a function at a certain value, you just have to plug that certain value into the function. Basically, replace all x's with the one given. Let's do f(x) first:
So, for f(x), your answer is -50.
Let's do the exact same thing for g(x):
Your answer for g(x) is -12.
Hopefully, this makes sense!