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anonymous

  • one year ago

Find the slope of the line passing through the points (–1, 3) and (4, –7). 2 3/4 -4/3 -2

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  1. anonymous
    • one year ago
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    there are a lot of questions like this on the OS look at them

  2. anonymous
    • one year ago
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    Will Fan and Metal

  3. anonymous
    • one year ago
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    Sara I wish I could Help But I can't Sorry D:

  4. anonymous
    • one year ago
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    Each point is written (x,y). The formula for the slope of a line is \[\frac{y _{2}-y _{1}}{x _{2}-x _{1}}\] The little two means it's the y or x-coordinate for the 2nd point you pick.

  5. anonymous
    • one year ago
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    Please tell me if you still don't understand

  6. anonymous
    • one year ago
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    Could u explain it a little more

  7. anonymous
    • one year ago
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    Take the x and y coordinates (first and second number in the parentheses) and plug them into the formula I gave you.

  8. kc_kennylau
    • one year ago
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    First point is (-1,3), second point is (4,-7). \[\Large\text{slope}=\frac{\text{change in y}}{\text{change in x}}\]

  9. anonymous
    • one year ago
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    ok what next

  10. kc_kennylau
    • one year ago
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    What is the \(\Large\text{change in y}\)?

  11. anonymous
    • one year ago
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    3?

  12. kc_kennylau
    • one year ago
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    No, that is the \(\Large\text{original y}\)

  13. anonymous
    • one year ago
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    I dont understand

  14. kc_kennylau
    • one year ago
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    Okay, when we go from the point (-1,3) to (4,-7)

  15. kc_kennylau
    • one year ago
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    The y-value changed from 3 to -7, right?

  16. anonymous
    • one year ago
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    yea

  17. kc_kennylau
    • one year ago
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    Does it make sense to you that \(\Large\text{change in y = new y - original y}\)?

  18. kc_kennylau
    • one year ago
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    Let's plug those numbers in

  19. anonymous
    • one year ago
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    ok thanks

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