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A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y=-0.8x^2 + 12x +25.8 where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. How far horizontally from its starting point will the rocket land? a. 25.80 m b. 37.00 m c. 17.24 m d. 16.91 m

Melissa Norris

in Mathematics

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Kristi Hammond on September 12, 2018

The rocket from the earth over 16.85 metres horizontally from the starting point. I would select option D. I think you have a typo in your problem.To find this answer, we have to find the point on the graph where the parabola hits the x-axis (or earth). The use of the quadratic equation, we get two answers about -1.85 and 16.85. The first value does not apply in the context of this story. The second response would be the distance.


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