SOLUTION: find the slope for the ling passing through the two given points: A = 7,3 B= -2,5

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Question 115198: find the slope for the ling passing through the two given points:
A = 7,3 B= -2,5
Answer by jim_thompson5910(21685) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Finding the slope
To find the slope going from (7,3) to (-2,5) we are going to calculate the change in y over the change in x, or the rise over the run. The change is the difference between the two coordinates. So if the y-coordinate of a point goes from 3 to 5, the change in these numbers is 2 (since 5-3=2). If the x-coordinate changes from 7 to -2, then the change is -9 (since -2-7=-9). So to calculate the slope we use this formula:
Slope:

m=%28change_in_y%29%2F%28change_in_x%29=rise%2Frun where m is the slope

So now we let y%5B2%5D=5,y%5B1%5D=3,x%5B2%5D=-2,x%5B1%5D=7Now plug these numbers into the slope formula:

m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29=%285-%283%29%29%2F%28-2-%287%29%29+=+2%2F-9


So after simplification the slope is m=-2%2F9