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Math Help - Equation of Line Help

  1. #1
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    Unhappy Equation of Line Help

    Okay so im doing EQAO practice assignments but they still count for marks. So here is a question and when there is something like this 1/4 thats a fraction.

    Rearrange 4y-x=8 in the form y=mx+b

    a) y=x+b

    b) y=-x+2

    c) y=1/4x+2

    d) y=-1/4x+2
    Look for my name please because i might have other problems. Thanks for the Help.
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  2. #2
    o_O
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    4y - x = 8

    What's the problem? You simply solve for y as if it is an algebra problem:
    4y = x + 8 (added x to both sides)

    Divide both sides by 4 ... etc. etc.
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  3. #3
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    Lol my problem is that i completely stink at math its the only subject im almost failing.
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  4. #4
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by Davey_meister View Post
    Okay so im doing EQAO practice assignments but they still count for marks. So here is a question and when there is something like this 1/4 thats a fraction.

    Rearrange 4y-x=8 in the form y=mx+b

    a) y=x+b

    b) y=-x+2

    c) y=1/4x+2

    d) y=-1/4x+2
    Look for my name please because i might have other problems. Thanks for the Help.
    What we want to do here is solve for y:

    4y-x=8

    Add x to both sides:

    4y-x{\color{red}+x}=8{\color{red}+x} \implies 4y=x+8

    Divide both sides by four:

    \frac{4y}{{\color{red}4}}=\frac{x+8}{{\color{red}4  }} \implies \color{red}\boxed{y=\frac{1}{4}x+2}

    The best answer would be C.

    Hope this makes sense!
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