SOLUTION: Find the slope of the line containing the given pair of points.(1, 2) and (9, 12)

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line containing the given pair of points.(1, 2) and (9, 12)      Log On


   

Question 458272: Find the slope of the line containing the given pair of points.(1, 2) and (9, 12)
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=1 and y%5B1%5D=2.
Also, is the second point . So this means that x%5B2%5D=9 and y%5B2%5D=12.


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


m=%2812-2%29%2F%289-1%29 Plug in y%5B2%5D=12, y%5B1%5D=2, x%5B2%5D=9, and x%5B1%5D=1


m=%2810%29%2F%289-1%29 Subtract 2 from 12 to get 10


m=%2810%29%2F%288%29 Subtract 1 from 9 to get 8


m=5%2F4 Reduce


So the slope of the line that goes through the points and is m=5%2F4