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MaeganR

  • 3 years ago

#14. Write an equation of a line that has the slope of -1/2 in each form. a. point-slope form b. slope-intercept form

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  1. MaeganR
    • 3 years ago
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    @erdog82 @Butterfly16 @chihiroasleaf

  2. erdog82
    • 3 years ago
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    First, I believe you have to decide what points you want to use to get the slope of -1/2

  3. MaeganR
    • 3 years ago
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    |dw:1358117562513:dw|

  4. MaeganR
    • 3 years ago
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    could this help me?

  5. erdog82
    • 3 years ago
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    some points could be (4,-1) (6,-2)

  6. MaeganR
    • 3 years ago
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    so how do i write an equation of a line that has a slope of -1/2 in point-slope form, and slope-intercept form.

  7. erdog82
    • 3 years ago
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    well what is y1

  8. MaeganR
    • 3 years ago
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    -1 ?

  9. erdog82
    • 3 years ago
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    yup, so so far we have y+1= -1/2 x - x1 what is x1?

  10. MaeganR
    • 3 years ago
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    4

  11. MaeganR
    • 3 years ago
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    ?

  12. erdog82
    • 3 years ago
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    yup, so then we have y+1=-1/2 x -4

  13. MaeganR
    • 3 years ago
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    thats it for a? we don't have to solve?! now how do we do b? y=mx+b

  14. erdog82
    • 3 years ago
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    what did you have to do for 13 on your last question?

  15. MaeganR
    • 3 years ago
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    what do you mean?

  16. erdog82
    • 3 years ago
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    you have to subtract 1 from -4

  17. MaeganR
    • 3 years ago
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    so its -5

  18. erdog82
    • 3 years ago
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    so then what do you get?

  19. MaeganR
    • 3 years ago
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    -5 ?

  20. erdog82
    • 3 years ago
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    so then its y=-1/2 x - 5

  21. erdog82
    • 3 years ago
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    and your done!

  22. MaeganR
    • 3 years ago
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    now i have 10 problems of standard form to do and 15 problems to do of parallel and perpendicular lines but i don't want to keep bothering you.

  23. erdog82
    • 3 years ago
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    oh, don't worry, it will help me! I am in "Enriched Algebra" and I just learned that, and I understand it really well - helping you will help me study and practice!

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