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Math Help - Find a point on the line when given the equation

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    Find a point on the line when given the equation

    If the equation is 3x + 4y = -1
    How would you find two points on that line to graph it?
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  2. #2
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    Quote Originally Posted by ZettaDigit View Post
    If the equation is 3x + 4y = -1
    How would you find two points on that line to graph it?
    Hi ZettaDigit,

    Assign some arbitrary values for x and solve for y.

    Or...find the x and y intercepts.


    For instance, let x = 0

    Then 3(0) + 4y = -1

    0 + 4y = -1

    y = -1/4

    Point (0, -1/4)

    This is actually the y-intercept.

    To find the x-intercept, you would set y = 0 and solve for x.
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