SOLUTION: how do i find the slope of a line that passes through the points (-2,3) and (1, -4) ? please help (:

Algebra ->  Linear-equations -> SOLUTION: how do i find the slope of a line that passes through the points (-2,3) and (1, -4) ? please help (:      Log On


   

Question 214985: how do i find the slope of a line that passes through the points (-2,3) and (1, -4) ?
please help (:
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=3.
Also, is the second point . So this means that x%5B2%5D=1 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=%28-4-3%29%2F%281--2%29 Plug in y%5B2%5D=-4, y%5B1%5D=3, x%5B2%5D=1, and x%5B1%5D=-2


m=%28-7%29%2F%281--2%29 Subtract 3 from -4 to get -7


m=%28-7%29%2F%283%29 Subtract -2 from 1 to get 3


So the slope of the line that goes through the points and is m=-7%2F3