Q9. A line passes through the p
(1,5) & (2,-4). Find the slope of the
line and the equation of the straight
line.
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(x1,y1)=(1,5)
(x2,y2)=(2,-4)
slope(m) =y2-y1/x2-x1
=-4-5/2-1
= -9/1=-9
y2-y1=m(x2-x1)
-4-y=-9(2-x)
x-y-4+9=0
x-y+5=0
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