quadratic equation

Part 1: Using algebraic techniques, show how you would convert the equation y = a(x-r) x - s to the form y = a(x - hz+k. Part 2: Describe why converting between factored form, standard form and vertex form is useful when analyzing a quadratic relation. *Use ONLY ONE of the three examples below to aid your explanation. a.) a = 1, r = 2, s= -4 b.) a = -2, r = -5, s = 2 c.) a = -3, r = -8, s =0