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anonymous

  • 4 years ago

determine the slope of a line (0, -15) and (-2,4)

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  1. anonymous
    • 4 years ago
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    how do we do this please explain.

  2. anonymous
    • 4 years ago
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    slope = m = (y2-y1)/(x2-x1) your points (0,-15)-->(x1,y1) (-2,4)-->(x2,y2)

  3. anonymous
    • 4 years ago
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    slope can also be defined as rise / run or the change in y over the change in x

  4. anonymous
    • 4 years ago
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    using the above formula for slope, with those points for the x1, y1, x2, y2 you should come to the answer just fine

  5. anonymous
    • 4 years ago
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    19/-2=-9.5=ans. this can be used to check your answer

  6. anonymous
    • 4 years ago
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    how did you get that?

  7. anonymous
    • 4 years ago
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    are you serious? I just completely explained to you.. just think a little, read what I have wrote and you should be fine

  8. anonymous
    • 4 years ago
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    yes but i don't get how we divide which numbers by which.

  9. anonymous
    • 4 years ago
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    okay so if you are given a point. which one is x and which one is y (#,#)?

  10. anonymous
    • 4 years ago
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    (x,y) right?

  11. anonymous
    • 4 years ago
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    oh wait i think i get it.

  12. anonymous
    • 4 years ago
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    you are given 2 x's and 2 y's

  13. anonymous
    • 4 years ago
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    rise / run = slope; rise = difference in y run = difference in x

  14. anonymous
    • 4 years ago
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    difference --> subtraction just make sure if you put y1 in front on top you put x1 in front on bottom

  15. anonymous
    • 4 years ago
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    or vice versa it doesn't matter.

  16. anonymous
    • 4 years ago
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    Oh thanks a lot bud! I really appreciate it!

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