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anonymous

  • one year ago

Fan Testimonial and Medal! What is the slope of the line that passes through the points (1, 7) and (–4, –8)? What is the slope of the line that passes through the points (–2, 15) and (–8, –5)?

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  1. anonymous
    • one year ago
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    Only the second line!

  2. anonymous
    • one year ago
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    If you can solve 1, then you can solve second one also..

  3. Vocaloid
    • one year ago
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    point slope formula: (y2-y1) = m(x1-x2) solve for m by using the points (x1,y1) and (x2,y2) by plugging in the values for x1,x2,y1, and y2

  4. anonymous
    • one year ago
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    i didn't line one is a different question lol

  5. anonymous
    • one year ago
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    I know, but they are one and the same concept based question. If you can find the slope of first, then by using same formula, you can find second one too. :P

  6. anonymous
    • one year ago
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    i didn't the first line is the wrong problem (the next question)

  7. anonymous
    • one year ago
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    Slope is given by: \[Slope = \frac{y_2 - y_1}{x_2 - x_1}\]

  8. anonymous
    • one year ago
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    so 3/17?

  9. anonymous
    • one year ago
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    How, show me first..

  10. anonymous
    • one year ago
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    y2-y1 =3 ------- x2-x1= 17

  11. anonymous
    • one year ago
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    Okay, what is y2 value and what is y1 value there?

  12. anonymous
    • one year ago
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    -5 minus -8

  13. anonymous
    • one year ago
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    |dw:1432839333715:dw|

  14. anonymous
    • one year ago
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    In first point (-2,15), first is x1 value and second is y1 value. In second point (-8,-5), first is x2 value and second is y2 value..

  15. anonymous
    • one year ago
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    Now plug in the values carefully..

  16. anonymous
    • one year ago
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    -20 ---- -3 6.66666

  17. Vocaloid
    • one year ago
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    not quite, check the denominator again

  18. anonymous
    • one year ago
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    How you got -3 in denominator?

  19. anonymous
    • one year ago
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    ...

  20. anonymous
    • one year ago
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    -6?

  21. anonymous
    • one year ago
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    -5-15 = -20 this is okay.. Check your denominator once again.. -8 -(-2) = ??

  22. anonymous
    • one year ago
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    -6?

  23. Vocaloid
    • one year ago
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    yea, -6 is the denominator

  24. Vocaloid
    • one year ago
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    so, what is the slope?

  25. anonymous
    • one year ago
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    That is great..

  26. anonymous
    • one year ago
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    10 --- 3

  27. anonymous
    • one year ago
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    Good..

  28. anonymous
    • one year ago
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    but i put - 10 ----- 3. so i failed you can't miss one :/

  29. Vocaloid
    • one year ago
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    yup! 10/3 is the answer for the first problem do you think you can solve the second one on your own?

  30. anonymous
    • one year ago
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    @Vocaloid this is second one.. :P

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