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anonymous

  • one year ago

Please Please someone help. Last question to a 5 part assignment I've been trying to finish. Below is a graph that represents the total profits for a third month. Write the equation of the line that represents this graph. Show your work or explain how you determined the equations. Graph of line going through ordered pairs (0, 300) and (450, 0)

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  1. anonymous
    • one year ago
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    Find the slope by using rise over run then use point slope form

  2. anonymous
    • one year ago
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    How do I do that?

  3. anonymous
    • one year ago
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    @Shalante

  4. anonymous
    • one year ago
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    since x is higher on the 450 x2 becomes 450 x1 becomes 0 y2 become 300 y1 become 0 Slope is rise over run m=y2-y1/x2-x1 where m is the slope After you find slope, tell me

  5. anonymous
    • one year ago
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    300/450

  6. anonymous
    • one year ago
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    @Shalante

  7. anonymous
    • one year ago
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    0-300=-300 So the slope is -300/450 You have to reduce it so its -2/3 m=-2/3 The point slope form is y-y1=m(x-x1) or y-y2=m(x-x2) either one works then bring the y1 over the right side

  8. anonymous
    • one year ago
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    which one is y and which one is y1

  9. anonymous
    • one year ago
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    im confused

  10. nerdyotter
    • one year ago
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    (y1) is the value used for the y value you are replacing. So, if you had an example ordered pair of, (5,7), the equation would be [y-7 = m(x-5)], adding the slope to whatever equation you have.

  11. anonymous
    • one year ago
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    y-0=-2/3(x-450)

  12. nerdyotter
    • one year ago
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    So, if you understand rise over run, first find the slope of the two points, then use point slope form to substitute in your x, y, and slope values. An easy formula for finding slope in a two-dimensional coordinate plane is... \[\frac{ y2 - y1 }{ x2 - x1 }\]

  13. anonymous
    • one year ago
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    im still confused

  14. anonymous
    • one year ago
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    distribute it

  15. anonymous
    • one year ago
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    what do i do next

  16. anonymous
    • one year ago
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    how do i do that?

  17. anonymous
    • one year ago
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    distributing by multiplying the paranthese for example 6(a-b) 6a-6b

  18. anonymous
    • one year ago
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    y-0=-2/3x-450

  19. anonymous
    • one year ago
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    like that^

  20. anonymous
    • one year ago
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    no you multiply the -2/3 by 450 which equals -300 so its y=-(2/3)x+300

  21. anonymous
    • one year ago
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    ok and then what do i do?

  22. anonymous
    • one year ago
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    thankyou by the way for helping me

  23. anonymous
    • one year ago
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    That is the equation. You are done.

  24. anonymous
    • one year ago
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    wow that wasnt that hard. so in the future all i do is find the slope, then do that other formula and then distribute?

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