Ahot air balloon went from an elevation of 6,678 feet to an elevation of 3,438 feet in 48 minutes. what was its rate of descent?

The rate  of descent is

Step-by-step explanation:

we know that

The formula to calculate the rate or slope between two points is equal to

Let

x------> the time in minutes

y----> the elevation in feet

we have

Substitute the values

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

the square root of what number? if you add that, then someone will probably answer the question.