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The gradient of the straight line joining the points P(5, -7) and Q(-2, -3) is

Mathematics
JAMB 2012

The gradient of the straight line joining the points P(5, -7) and Q(-2, -3) is
  • A. \(\frac{1}{2}\)
  • B. \(\frac{2}{5}\)
  • C. \(-\frac{4}{7}\)
  • D. \(-\frac{2}{3}\)
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Correct Answer: Option C
Explanation
PQ = \(\frac{y_1 - y_0}{x_1 - x_0}\) = \(\frac{-3 - (-7)}{-2 - 5}\) = \(\frac{-3 + 7}{-2 - 5}\) = \(\frac{4}{-7}\)

There is an explanation video available below.


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Explanation Video

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