Question

25. Two teenagers throw pennies from the top of the school. The quadratics at the right show how high each penny over time. Emily: y=-16x² + 20x +47 What are the maximum heights of each penny? Isaiah: y=-16x² +15x +47 When did each penny hit the ground?

Answer 1

Th maximum time Emily hit the ground is x=5/8 while that of

Isaiah is 15/32.