If f : s -> t and g : t -> u, in g o f form. f(u) = f(v) isan
existence equation.
a) if f is 1-1 and g is onto, prove that g o f is 1-1.
b) if f is onto and g is 1-1, prove that g o f is onto.

When you dilate a figure with a scale factor of 1/2, what will the dilated figure look like?                                                                                           a: the dilated figure will have side lengths that are half the length of the original side lengths.                                                                          b: the angles in the dilated figure will be half the measure of the original figure.                                                                                c: the dilated figure will have side lengths twice the length of the original.