Given a verbal description, how do you interpret key features of functions and graphs

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Which is the scale factor proportion for the enlargement shown?