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Math Help - graphing: find the y-intercept, need help!

  1. #1
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    graphing: find the y-intercept, need help!

    So i have two point on my graph

    (2,5) and (-3,-3)

    the slope is

    m=8/5

    so y=8/5x + b

    i take the first point

    so 5= 8/5 (2) + b
    5= 16/5 +b


    afterwards... im stuck can somebody help me figure out the answers plx
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  2. #2
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    Quote Originally Posted by jingming90 View Post
    So i have two point on my graph

    (2,5) and (-3,-3)

    the slope is

    m=8/5

    so y=8/5x + b

    i take the first point

    so 5= 8/5 (2) + b
    5= 16/5 +b

    b = 5 - \frac{16}{5}

    common denominator?
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  3. #3
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    would I still get the same answer if i use (-3,-3)
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  4. #4
    MHF Contributor Unknown008's Avatar
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    You should be getting the same answer, yes.
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