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Question

A plane descends to sea level from $12,000 \mathrm{ft}$ after being airborne for $1 \frac{1}{2} \mathrm{hr}$. The entire flight time is $2 \mathrm{hr} 10 \mathrm{~min}$. Find the average rate of descent of the plane.

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 2To solve this problem we need to use the following formula (for determining the rate of change and the given points of data).

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

And with these points $(0 \mathrm{~min}, 12000 \mathrm{ft})$ first point and $(40 \mathrm{~min}, 0 \mathrm{ft})$ as $\left(x_{1}, y_{1}\right)$ and $\left(x_{2}, y_{2}\right)$ in the formula;

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