Question

Find the slope of the line containing the points A(8,-8) and B(11,-6)

Answer 1

y = mx+b. substitute the two points in that equation. solve for m . m is the slope.

Answer 2

also, y2-y1/x2-x1, whichever is more convenient.

Answer 3

So I did the y2-y1 over x2- x1 and got -6+8 over 11-8 and then reduced that to 2/3, is that right?

Answer 4

right, you can cross check with the other method too.

Answer 5

Yep!

Answer 6

Now for another one. Find the center and radius of the circle (x-8)^2 + (y-8)^2 =16