Question 1169975

if ({{{r}}},{{{-5}}}) and ({{{3}}},{{{13}}}) are two points on same line, and {{{m=8}}} is a slope

then 

{{{s=(y-y[1])/(x-x[1])}}}

{{{8=(-5-13)/(r-3)}}}

{{{8=(-18)/(r-3)}}}

{{{8(r-3)=-18}}}

{{{8r-24=-18}}}

{{{8r=-18+24}}}

{{{8r=6}}}

{{{r=6/8}}}

{{{r=3/4}}}