SOLUTION: find the slope of the line passing through the points (2,4) and (-2,-4)

Algebra ->  Equations -> SOLUTION: find the slope of the line passing through the points (2,4) and (-2,-4)      Log On


   



Question 733419: find the slope of the line passing through the points (2,4) and (-2,-4)
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=2 and y%5B1%5D=4.
Also, is the second point . So this means that x%5B2%5D=-2 and y%5B2%5D=-4.


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


m=%28-4-4%29%2F%28-2-2%29 Plug in y%5B2%5D=-4, y%5B1%5D=4, x%5B2%5D=-2, and x%5B1%5D=2


m=%28-8%29%2F%28-2-2%29 Subtract 4 from -4 to get -8


m=%28-8%29%2F%28-4%29 Subtract 2 from -2 to get -4


m=2 Reduce


So the slope of the line that goes through the points and is m=2