ruiz123 ruiz123
  • 13-08-2017
  • Mathematics
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Give the slope of the line that contains (-1,-3) and (-1,-1)

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PastaMario
PastaMario PastaMario
  • 13-08-2017
Use the rise/run formula.

Choose one point to be the first point (-1,-3), and the other to be the second point (-1,-1).

(y2 - y1) / (x2 - x1) = slope of line.

(-1 - (-3)) / (-1 - (-1)) = 
(2 / 0) = undefined!

This line is a completely vertical line; it has no slope.
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