how i turn x + 4y + 8 = 0 in a function notation?

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  • 1 month ago

    4y = -x - 8

    y = (-1/4)x - 2, that's y as a function of x

    x = -4y - 8, that's x as a function of y

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  • 1 month ago

    First, solve for y:

    x + 4y + 8 = 0

    4y = -x - 8

    y = (-1/4)x - 2

    Then change the y to f(x):

    f(x) = (-1/4)x - 2

    That's your equation in function form.

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  • Philip
    Lv 6
    1 month ago

    Put the equation in slope, y-intercept form y = mx +b, ie., y = -(1/4)x - 2. 

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