Question

Find the missing value so that the two points have a slope of -11/7. (2,6) and (x,-5)

Answer 1

You could plot them on a cartesian plane and start at (2,6) and make a graph with the slope and see where it hits the y-value at -5...
or...
since slope =(rise)/run
and that is the (change in y)/(change in x)
you could sub y-y2/x-x2 for the two points and work that way : )

Answer 2

m = (-5-6)/(x-2) = -11/7.
-11/(x-2) = -11/7,
-77 = -11x + 22,
11x = 99,
X = 9.