SOLUTION: (3,5),(-3,r) m =3/4

Algebra ->  Linear-equations -> SOLUTION: (3,5),(-3,r) m =3/4      Log On


   

Question 1205365: (3,5),(-3,r) m =3/4
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Reader may imagine you are given two points one with a variable coordinate, and a slope of those two points, and you want to solve for that unknown variable.

%28r-5%29%2F%28-3-3%29=3%2F4
.
.

Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.
(3,5),(-3,r) m =3/4
~~~~~~~~~~~~~~~~~~~~~~~~~~ 

%28r-5%29%2F%28%28-3%29-3%29 = 3%2F4


%28r-5%29%2F-6 = 3%2F4


4(r-5)  = 3*(-6)

4r - 20 =  -18

4r = -18 + 20

    4r = 2

     r = 2%2F4 = 1%2F2 = 0.5.


ANSWER.  r = 1%2F2 = 0.5.

Solved.