Explain how to write a composite function to find
the area of the region at time t.

Step-by-step explanation:

Given

Required

Determine composite function to find A in terms of t

The interpretation of this question is to determine A(t) and this is solved as follows:

Because:

And we want to eliminate r in

We have to substitute 0.5 + 2t for r in

 becomes

The solution can be solved further, but it is best left in this form:

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

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~just a girl in love with shawn mendes

the answer is y = 11.54

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