SOLUTION: P is the point (-1,3) . Q is the point (2,-1) . Find the equation of line PQ.

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Question 853276: P is the point (-1,3) . Q is the point (2,-1) .
Find the equation of line PQ.
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
P is the point (-1,3) . Q is the point (2,-1) .
Find the equation of line PQ.
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Equation of line: y=mx+b, m=slope, b=y-intercept
slope=∆y/∆x=(3-(-1))/(-1-2)=4/-3=-4/3
equation:
y=-4x/3+b
solve for b using coordinates of one of given points(2,-1)
-1=-4*2/3+b
b=5/3
equation: y=-4x%2F3%2B5%2F3