Kenny is standing on top of a boulder at his neighborhood pond. He picks up a small rock, so that it is 7 feet off the ground, and throws the rock into the pond. The height of the rock after t

Question

seconds can be modeled by the expression −16t2+32t+7
. What does 7 represent in the context of the problem?(1 point)
Responses

7 represents the height of the rock when Kenny throws it.
7 represents the height of the rock when Kenny throws it.

7 does not make sense as a value in this problem.
7 does not make sense as a value in this problem.

7 represents the number of rocks Kenny found at the pond.
7 represents the number of rocks Kenny found at the pond.

7 represents the number of seconds Kenny hold the rock before throwing it.

Answer 1

In the context of the problem, the expression for the height of the rock after \( t \) seconds is given by \( -16t^2 + 32t + 7 \). The constant \( 7 \) represents the initial height of the rock when Kenny throws it, which is 7 feet off the ground. Therefore, the correct response is:

7 represents the height of the rock when Kenny throws it.