Question 101098
P (7, 11)
Q(-2,4)
distance={{{d=sqrt(x[2]-x[1])^2+(y[2]-y[1])^2=srqt(9^2+7^2)=11.4}}}
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slope=m=change in y/chnge in x=7/9
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midpoint= ((7+(-2))/2,(11+4)/2)=(5/2,15/2)
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equation: y-y[1]=m(x-x[1]
y-4=7/9(x-(-2))
y-4=7/9(x+2)
9y-36=7(x+2)
9y-36=7x+14
9y=7x+50
y=7x/9+50/9 slope-intercept form
7x-9y+50=0 general form
{{{graph(500,500,-10,10,-10,10,7x/9+50/9)}}}