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huneya

What is the slope of the line between (3, –4) and (–2, 1)?

  • one year ago
  • one year ago

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  1. waterineyes
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    What is the change in y coordinates??

    • one year ago
  2. huneya
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    3

    • one year ago
  3. waterineyes
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    How??

    • one year ago
  4. huneya
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    1--4= -3

    • one year ago
  5. waterineyes
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    See, -(-) = + So, 1 - (-4) becomes 1 + 4 getting??

    • one year ago
  6. huneya
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    5 but how

    • one year ago
  7. waterineyes
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    -(-) becomes positive... Do you get that??

    • one year ago
  8. huneya
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    ok so how to find the ans

    • one year ago
  9. waterineyes
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    so you found y change = 5.. Now similarly tell me the change in x coordinates..

    • one year ago
  10. huneya
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    -5

    • one year ago
  11. waterineyes
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    Yes.. Now, \[Slope = \frac{y \; change}{x \; change}\] Can you do it now??

    • one year ago
  12. huneya
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    0

    • one year ago
  13. waterineyes
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    How??

    • one year ago
  14. waterineyes
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    \(Slope = \frac{5}{-5}\) Is it 0???

    • one year ago
  15. huneya
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    no u r wrong

    • one year ago
  16. waterineyes
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    How??

    • one year ago
  17. waterineyes
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    Aren't you getting the answer (-1) ???

    • one year ago
  18. huneya
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    is in between -2 and 2

    • one year ago
  19. waterineyes
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    See, the other formula of slope is: \[Slope = \frac{y_2 - y_1}{x_2 - x_1}\]

    • one year ago
  20. waterineyes
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    \[Slope = \frac{1 - (-4)}{-2-3} = \frac{5}{-5} = -1\]

    • one year ago
  21. waterineyes
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    Is -1 not between 2 and -2??

    • one year ago
  22. waterineyes
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    \(-2, -1, 0 , 1, 2\) It is between 2 and -2..

    • one year ago
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