Question 369612
Find the slope.
{{{m=(y[2]-y[1])/(x[2]-x[1])=(1-1)/(-4-4)=0/-8=highlight(0)}}}
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{{{drawing(300,300,-5,5,-5,5,grid(1),circle(4,1,0.2),circle(-4,1,0.2),graph(300,300,-5,5,-5,5,0,1))}}}