Question 101090: Write the equation of the line passing through (3, –1) and (3, 6).
Found 2 solutions by stanbon, tutorcecilia:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Write the equation of the line passing through (3, –1) and (3, 6).
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Find the slope: m = [6--1]/[3-3] = undefined because the denominator is zero
So the slope is undefined; the line is a vertical line.
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Since the line passes thru two points with x=3
the equation of the line is x=3.
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Cheers,
Stan H.
Answer by tutorcecilia(2152)  (Show Source):
You can put this solution on YOUR website! (3, –1) and (3, 6)
Use the formula for the slope of a line:
Slope = m = (y1-y2)/(x1-x2)
Plug-in the values and solve: m = (-1-6)/(3-3) = -7/0=undefined
Since the slope is undefined, the line is a straight vertical line passing through only one point on the x-axis. Since all x-values are 3, the equation is:
x=3
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