SOLUTION: Please help solve: find the slope, if it exists, of the line containing the pair of points (8,9) and (10,-3) what does m =?

Algebra ->  Linear-equations -> SOLUTION: Please help solve: find the slope, if it exists, of the line containing the pair of points (8,9) and (10,-3) what does m =?      Log On


   

Question 325799: Please help solve:
find the slope, if it exists, of the line containing the pair of points (8,9) and (10,-3)
what does m =?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Note: is the first point . So this means that x%5B1%5D=8 and y%5B1%5D=9.
Also, is the second point . So this means that x%5B2%5D=10 and y%5B2%5D=-3.


m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 Start with the slope formula.


m=%28-3-9%29%2F%2810-8%29 Plug in y%5B2%5D=-3, y%5B1%5D=9, x%5B2%5D=10, and x%5B1%5D=8


m=%28-12%29%2F%2810-8%29 Subtract 9 from -3 to get -12


m=%28-12%29%2F%282%29 Subtract 8 from 10 to get 2


m=-6 Reduce


So the slope of the line that goes through the points and is m=-6