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Given that the initial height of the launcher was above ground, the function
created by the student should be transformed upwards.
Reasons:
The function created by the student = h(r), a model of the path of a T-shirt cannon
The part of the equation left out in the function = The initial height of the cannon
The given initial height of the cannon = 4 feet
Required:
The method of correcting the function to model the path of the T-shirt correctly
Solution:
Given that the function created by the student gives the height of the
cannon, and the initial height of the launcher is 4 feet above the ground
The initial function h(r) should be transformed 4 feet in the upward
direction.
The student should add 4 feet to the function by replacing h(r) with h(r) + 4, to account for the increase in all heights by 4 feet;
The correct option is; The student should replace h(r) with h(r) + 4
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