Hey, could someone help me with this? If you could that would be great!

It's a 3 part question, this is the first part.
The quadratic function is f(x) = x^2 - 7.

I would like help on the third question...

Hey could someone help me with this If you could that would be greatIts a 3 part question this is the first part The quadratic function is fx x2 7 I would like class=