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anonymous

  • one year ago

plz help i really need this credit and i have no idea what im doing The slope of diagonal OA is ???? , and its equation is ??? I will post the graph in the comments

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Answer choices for first blank A.4/3 B.3/4 C.1

  3. anonymous
    • one year ago
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    Answer choices for second blank: A.4x-y=0 B.x-3y=0 C.4x-3y=0

  4. welshfella
    • one year ago
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    count the units from point A straight down to the x axis then count from this point on the x axis left to the 0 slsope = first count / second

  5. welshfella
    • one year ago
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    |dw:1437053596264:dw|

  6. welshfella
    • one year ago
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    the slope = y / x

  7. anonymous
    • one year ago
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    so B. 3/4?

  8. anonymous
    • one year ago
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    but the how do you find the equation?

  9. welshfella
    • one year ago
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    no its not 3/4 check again

  10. welshfella
    • one year ago
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    its the vertical distance / horizontal distance - sometimes called rise/run

  11. anonymous
    • one year ago
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    A.4/3

  12. welshfella
    • one year ago
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    right

  13. anonymous
    • one year ago
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    cool thanks now i just need to find the equation

  14. welshfella
    • one year ago
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    the general form for a straight line is y = mx + b where m = slope (which we have just found) and b = intercept on the y-axis

  15. welshfella
    • one year ago
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    |dw:1437054098723:dw|

  16. welshfella
    • one year ago
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    in your case the intercept is at 0 so we have y = (4/3) x + 0 = (4/3) x

  17. welshfella
    • one year ago
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    now you need to get rid of the fraction 4/3 so to get it into one of the forms in the choices Can you do this?

  18. welshfella
    • one year ago
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    |dw:1437054276881:dw|

  19. anonymous
    • one year ago
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    im alittle confused

  20. welshfella
    • one year ago
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    can you see how we got the above equataion?

  21. anonymous
    • one year ago
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    yes

  22. welshfella
    • one year ago
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    h = mx + bb and m = 4/3 , b = 0

  23. welshfella
    • one year ago
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    Ok so to get rid of the fraction 4/3 we multiply each term by 3

  24. welshfella
    • one year ago
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    |dw:1437054456654:dw|

  25. welshfella
    • one year ago
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    note they have 4x - 3y = 0 we get this from our equation by subtract 3y from both sides of the '=' 3y - 3y = 4x - 3y 4x - 3y = 0

  26. welshfella
    • one year ago
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    this is stand form - the x term first then the y term and the number after the =

  27. welshfella
    • one year ago
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    * standard form

  28. anonymous
    • one year ago
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    Thank you you helped me so much

  29. welshfella
    • one year ago
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    yw

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