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Anonymous Anonymous
  • 07-02-2017
  • Mathematics
Answered

What is the slope of a line that passes through the points (1, -2) and (-3, -6)?


-2

-1

1

2

Verified Answer :

lily777
lily777 lily777
  • 07-02-2017

yur answer is m=1 hope it helpes

Answer Link
arthurpdc
arthurpdc arthurpdc
  • 07-02-2017

The slope (m) of a line that passes through the points P and Q can be calculated by the formula: \(m=\dfrac{\Delta y}{\Delta x}=\dfrac{y_Q-y_P}{x_Q-x_P}\). So:

\(
m=\dfrac{\Delta y}{\Delta x}\\\\
m=\dfrac{y_Q-y_P}{x_Q-x_P}\\\\
m=\dfrac{(-6)-(-2)}{(-3)-(1)}\\\\
m=\dfrac{-6+2}{-3-1}\\\\
m=\dfrac{-4}{-4}\\\\
\boxed{m=1}\)

Answer Link

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