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algebra- please help

posted by on .

graph by solution
y= 7/4x-4
y= -1/4x+4

  • algebra- please help - ,

    I think you mean "solve by graphing"

    visit

    http://rechneronline.de/function-graphs/

    for excellent graphing help.
    Be sure to use parentheses for proper grouping.

  • algebra- please help - ,

    sorry!
    can you solve for me? I don't understand how to work the site.

  • algebra- please help - ,

    I don't know how you can have trouble at the site. If you just enter

    7/(4x-4)
    and
    -1/(4x+4)

    into the first two function boxes, and click "Draw", you will see the graphs and where they intersect. That appears to be (-3/4,-1).

    Algebraically, set them equal:

    7/(4x-4) = -1/(4x+4)
    7(4x+4) = -1(4x-4)
    28x+28 = -4x+4
    32x = -24
    x = -3/4
    so, y = 7/(-7) = -1

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