Jessica A.

asked • 11/30/20

A Toy Rocket and a Drone Again

Functions R and D give the height, in feet, of a toy rocket and a drone, t seconds after they are released. Here are the graphs of R (for the rocket) and D (for the drone).

  1. Which of the inequalities is true: R(2)>D(2) or R(2)<D(2)?
  2. What was the height of the drone when the toy rocket hit the ground?
  3. For what value of t is R(t)=D(t) true? What does this tell you about the drone and the toy rocket?


Tami R.

tutor
R(2)>D(2) R of 2 is greater than D of 2 on the graph. The point of the negative parabola (2,45) for R has a greater value at the 2 on the x axis that D at the coordinates (2,20)
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11/30/20

Tami R.

tutor
R(t) = D(T) where the two shown graphs of R and D meet at one point. So it is true of t that R(t) = D(t) at point (4.5,20)
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11/30/20

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