Question
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
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 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.
7 represents the number of seconds Kenny hold the rock before throwing it.
7 does not make sense as a value in this problem.
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 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.
7 represents the number of seconds Kenny hold the rock before throwing it.
7 does not make sense as a value in this problem.
Answers
GPT-4o mini
In the context of the problem, the expression \(-16t^2 + 32t + 7\) models the height of the rock after \(t\) seconds. The term \(7\) represents the initial height of the rock when it is thrown, which is 7 feet off the ground.
Thus, the correct response is:
**7 represents the height of the rock when Kenny throws it.**
Thus, the correct response is:
**7 represents the height of the rock when Kenny throws it.**