SOLUTION: Help me please The question asks Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope". Determine the value of r so

Algebra ->  Functions -> SOLUTION: Help me please The question asks Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope". Determine the value of r so      Log On


   

Question 95810: Help me please
The question asks
Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope".
Determine the value of r so that the line through (-4, 8) and (r, -6) has a slope of 2/3.
Answer by elima(1433) About Me  (Show Source):
You can put this solution on YOUR website!
2%2F3= %28-6-8%29%2F%28r-%28-4%29%29
2%2F3= -14%2Fr%2B4
multiply r_4 on both sides;
%282r%2B8%29%2F3 = -14
multiply 3 on both sides;
2r+8 = -42
2r = -50
r = -25
:)