Question 73572: I just do not know how to do these. Please help?
Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(-1, 3) and (4, -2)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
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(-1, 3) and (4, -2)
slope = (-2-3)/(4--1) = -5/5= -1
The equation you want has form y=mx+b
You are told y=3 when x=-1 and you just determined m=-1
Use those facts to solve for b, as follows:
3=-1(-1)+b
b=2
------EQUATION:
y=-x+2
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Cheers,
Stan H.
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