SOLUTION: Find the slope using points (-4,-18) (-20,-19)

Algebra ->  Graphs -> SOLUTION: Find the slope using points (-4,-18) (-20,-19)      Log On


   

Question 631179: Find the slope using points (-4,-18) (-20,-19)
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=-4 and y%5B1%5D=-18.
Also, is the second point . So this means that x%5B2%5D=-20 and y%5B2%5D=-19.


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


m=%28-19--18%29%2F%28-20--4%29 Plug in y%5B2%5D=-19, y%5B1%5D=-18, x%5B2%5D=-20, and x%5B1%5D=-4


m=%28-1%29%2F%28-20--4%29 Subtract -18 from -19 to get -1


m=%28-1%29%2F%28-16%29 Subtract -4 from -20 to get -16


m=1%2F16 Reduce


So the slope of the line that goes through the points and is m=1%2F16

--------------------------------------------------------------------------------------------------------------
If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
--------------------------------------------------------------------------------------------------------------