use the graphing calculator to graph the quadratic function y = 2x2 + 2x – 40. what are the zeros of the function?

4 and –5
–4 and 5
–5 and –40
4 and –40

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15