SOLUTION: Find the slope of the line going through the pair of points. (8,-3), (-5,-2) Example: -3/11

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line going through the pair of points. (8,-3), (-5,-2) Example: -3/11      Log On


   

Question 5876: Find the slope of the line going through the pair of points.
(8,-3), (-5,-2)
Example: -3/11
Found 2 solutions by ichudov, Abbey:
Answer by ichudov(507) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: FIND EQUATION of straight line given 2 points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (8, -3) and (x2, y2) = (-5, -2).
Slope a is .
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or -0.0769230769230769%2A8+%2Bb+=+-2.38461538461538. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=-3--0.0769230769230769%2A8+=+-2.38461538461538.

y=(-0.0769230769230769)x + (-2.38461538461538)

Your graph:

Answer by Abbey(339) About Me  (Show Source):
You can put this solution on YOUR website!
first find the slope:
%28y-y1%29%2F%28x-x1%29
%28-3-%28-2%29%29%2F%288-%28-5%29%29
-1%2F13
slope = -1/13
Then use y=mx+b and substitute one set of points into the equation:
-3=(-1/13)(8)+b
-3=-8/13+b
-3+8/13=b
-31/13=b

so the equation is y=-1/13x+-31/13