Question 1075527
{{{(-26+11)/(-4-6)}}}


{{{-15/(-10)}}}


{{{3/2}}}


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{{{(1-19)/(10+2)}}}


{{{-18/12}}}


{{{-3/2}}}

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The two lines for each pair of points intersect.
Slopes,  {{{3/2<>-3/2}}}.