An eagle is flying at an altitude of 1,200 feet. In 6 seconds, it flies down to an altitude of 675 feet. What is the eagles change in altitude, in feet per second?

87.5 feet

Step-by-step explanation:

1,200-675=525 in 6 seconds

525/6=87.5 feet in 1 second

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.