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EmmaH

Could spomeone please take the time to help me understand this?? Write the point-slope form of the equation passing through (5, -1) with a slope of 6.

  • one year ago
  • one year ago

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  1. EmmaH
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    these are the answers : y-1=6(x+5) y+5=6(x-1) y+1=6(x-5) y-5=6(x+1)

    • one year ago
  2. 03225186213
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    point slope form y-y1=m(x-x1) m=slope

    • one year ago
  3. 03225186213
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    y-(-1)=6(x-5) y+1=6(x-5)

    • one year ago
  4. EmmaH
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    there is only one set of numbers how can i find m?

    • one year ago
  5. 03225186213
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    slope is given in question see it

    • one year ago
  6. EmmaH
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    oh so m=6

    • one year ago
  7. 03225186213
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    any more question about this

    • one year ago
  8. kymber
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    |dw:1352221469604:dw|

    • one year ago
  9. EmmaH
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    am i using y=mx+b?

    • one year ago
  10. 03225186213
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    you cant use this because you didnt know what is b (y-intercept)

    • one year ago
  11. EmmaH
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    ok then what? k=mx?

    • one year ago
  12. kymber
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    y=mx+b is slope-intercept form. This is point-slope form. You use point-slope form. All you do is plug in the numbers. That's all you do. Look at what I drew it explains it all. M is the slope and (x, y) is the point given.

    • one year ago
  13. EmmaH
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    y-y1=m(x-x1)??

    • one year ago
  14. EmmaH
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    oh and if i suddenly go off line itsbecause we dont have elctricity and my battery is dying

    • one year ago
  15. kymber
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    |dw:1352222119451:dw|

    • one year ago
  16. EmmaH
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    6(-5-5(1)?

    • one year ago
  17. brinethery
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    First, we find the y-intercept. -1 = 6(5) + b

    • one year ago
  18. EmmaH
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    1-1(1)=6 5-51)

    • one year ago
  19. EmmaH
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    those two are appart of the sam equation..

    • one year ago
  20. brinethery
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    Once you solve for b, you have your slope (m=6) and y-intercept. I calculated it and found b= -1-30 = -31 y = 6x + (-31) therefore, y = 6x -31

    • one year ago
  21. EmmaH
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    so we are using y=mx+b?

    • one year ago
  22. kymber
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    |dw:1352222244438:dw|

    • one year ago
  23. EmmaH
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    um how did you find b?

    • one year ago
  24. brinethery
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    Do what Kymber did. That's another way to write the equation of a line. You end up with the same result.

    • one year ago
  25. kymber
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    It says "point-slope form", that is not y=mx+b. The answer choices you gave are in point-slope form. I don't know why Brinethery is talking about slope-intercept form.

    • one year ago
  26. brinethery
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    This is point slope form: http://www.freemathhelp.com/point-slope.html Exactly what Kymber did.

    • one year ago
  27. 03225186213
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    i have told u already

    • one year ago
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