1. Write the equation that models the height of the roller coaster. Start by writing the equation of the circle. (Recall that the general form of a circle with the center at the origin is x2 + y2 = r2. (10 points)

Step-by-step explanation:

Given

From the complete question, we have:

--- radius

Required

Expression for the height of the roller coaster

We have:

--- equation of circle

Substitute 30 for r

Since the roller coaster is half of the circle, the height is defined by y.

So: make y the subject

Take square roots

Hence, the height is:

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

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