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Question 286375: Given two equations (written in slope-intercept form) of two nonparallel lines, derive the equation of the x-coordinate of
the point where the lines intersect.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Given two equations (written in slope-intercept form) of two nonparallel lines, derive the equation of the x-coordinate of
the point where the lines intersect.
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y = ax + b
y = cx + d
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If the two lines intersect,
ax+b = cx+d
ax-cx = d-b
(a-c)x = d-b
x = (d-b)/(a-c)
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Cheers,
Stan H.
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