Graph thefunction f by starting with graph of y = x^2 and utilizing transformations (shifting, compressing, stretching, and/or reflection). Verify the results utilizing the graphing utility. If essential, write f in form f(x) =a(x-h)^2 + k. Functions are f(x)+ x^2 +4x+2, f(x)=-x^2-6x, and f(x)=-2x^2 + 2x -3