Question 119583
  
m=<u>y-increment</u>
  x-increment

Since m={{{8/3}}},

{{{8/3=(r-(-7))/(-2-4)}}}
{{{8/3=(r+7)/(-6)}}}
{{{-6(8/3)=-6((r+7)/(-6))}}}
{{{-16=r+7}}}
{{{r=-16-7}}}
{{{r=-23}}}


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