Determine r so that the line that passes through the given points has the given slope

Question

help!!!! · Answer

(r,5)   (-2,r)    m=-2/11

help!!!! · Answer

like I always get the answer r=6.5 repeating but I know its wrong

help!!!! · Answer

so basically what i did was r-5$$\frac{ r-5 }{ -2-r }=\frac{ -2 }{ 11 }$$

jim_thompson5910 · Answer

maybe you need to provide the answer as a fraction

help!!!! · Answer

like so? 6.5-5=1.5
-2-6.5=-8.5 $$\frac{ 1.5 }{ -8.5 }$$

jim_thompson5910 · Answer

I would cross multiply

11(r-5) = -2(-2-r)

then solve for r

help!!!! · Answer

thats what i've tried but i get the answer 6.5 repeating. I tried in terms of fraction but i got -3/17

jim_thompson5910 · Answer

11(r-5) = -2(-2-r)

11r-55 = 4+2r

11r-2r = 4+55

r = ??

help!!!! · Answer

6.55555555

jim_thompson5910 · Answer

answer as a fraction though, before you got 6.555

help!!!! · Answer

59/9?

jim_thompson5910 · Answer

yes, r = 59/9

help!!!! · Answer

wait but if i add in 59/9 for "a" for the points and find slope, it doesnt equal to -2/11

jim_thompson5910 · Answer

you should have (59/9 - 5)/(-2 - 59/9) = -2/11

I'm not sure what you mean by "wait but if i add in 59/9 for "a" for the points and find slope, it doesnt equal to -2/11"