Question

A pebble is tossed into the air from the

top of a cliff. The height of the pebble
after x seconds is modeled by the
equation y = -16x² + 32x + 100. What is
the maximum height, in feet, reached by
the pebble?


Graph it!

Answer 1

20 [ft].

Explanation:

according to the equation of the height the related height is 20 [ft], when x=1.

All the details are provided in the attachment; the graph is shown with red curve line.