SOLUTION: I dont know how to find the r in (5,r) and (2,-3) m= 4/3. I've tried it over and over and i cant get it.

Algebra ->  Linear-equations -> SOLUTION: I dont know how to find the r in (5,r) and (2,-3) m= 4/3. I've tried it over and over and i cant get it.      Log On


   

Question 228255: I dont know how to find the r in (5,r) and (2,-3) m= 4/3. I've tried it over and over and i cant get it.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: remember that the formula m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 is used to find the slope. In this case, is the first point which means x%5B1%5D=5 and y%5B1%5D=7.

Also is the second point which means that x%5B2%5D=2 and y%5B2%5D=-3.


Now plug these values along with m=4%2F3 into the given slope formula to get:

4%2F3=%28-3-r%29%2F%282-5%29


I'll let you solve for 'r' from here.