4. Let's get started by graphing these three quadratic functions in the same viewing window. f(0) = x^2 + 2x, g(0) - 2x^2 - 3x - 5, and h(x)=-2^x - 2x + 4

a) What features appear to be the same on all quadratic functions?

b) Write your own equations for two more quadratic functions here:

c) Use technology to graph your equations. Do they have the same features you noticed in
the previous three graphs? Modify your observations about common features of quadratic
functions, if necessary.

d) What possible differences occur among quadratic functions?