How high above the water is the diver after 3 seconds?

Question

A diver jumps off a diving board. The diver's height above the water, in meters, is represented by the function , where t is the number of seconds since the diver jumped. How high above the water is the diver after 2 seconds? How high above the water is the diver after 3 seconds?

Answer 1

A diver jumps off a diving board. The diver's height above the water, in meters, is represented by the function , where t is the number of seconds since the diver jumped. How high above the water is the diver after 2 seconds? How high above the water is the diver after 3 seconds?

h(t) = -4.9 t² +1.7t +25

Plug in t= 2 sec

h(2) = -4.9 (2)² + 1.7 *2 +25

=- 4.9 *4 +3.4 +25

= - 19.6 +3.4 +25 = 8.8 m

Now you find for t = 3