Acoach is laying out lanes for a race. the lanes are perpendicular to a segment of the track such that one endpoint
of the segment is (2,50), and the other is (20,65). what are the equations of the lines through the endpoints?

Step-by-step explanation:

For this case we need to remember that a line is defined with minimum two points. And for this case we have two points given and we want to find a line who fits for the two points.

The two points are (2,50) and (20,65). Let's define some notation:

We want to estimate a line

Where m is the slope and b the the intercept. We can find the slope with the following formula:

On this case we need "The lanes are perpendicular to a segment of the track", so for this case when we have perpendicular lines we need to satisfy this:

And if we find the slope for the tangent line we got:

Now with the slope we can find the value of b using the first point, on this case (2,50) and if we replace into our equation we got:

And we can solve for b like this:

And the first line perpendicular to the point (2,50) would be:

Now with the slope we can find the value of b using the second point, on this case (20,65) and if we replace into our equation we got:

And we can solve for b like this:

And the first line perpendicular to the point (20,65) would be:

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09

stop cheating

step-by-step explanation: