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Math Help - Equation in 2 variables

  1. #1
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    Equation in 2 variables

    Hello everyone!

    I have this equation in two variables

    y = A/x+b

    I would like to find all the values for x and y that satisfy the equation.
    I can't remember the correct procedure, can u help me?

    Thanks!
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  2. #2
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    I'm probably wrong in this but I suppose y = any real number and x= all real numbers excluding zero? since a fraction can never have a zero.
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  3. #3
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    Quote Originally Posted by NewtoMath View Post
    I'm probably wrong in this but I suppose y = any real number and x= all real numbers excluding zero? since a fraction can never have a zero.

    Actually, x+b can't equal zero. So, set x+b equal to zero and solve for x. After doing that, you'll see that x can't equal -b.
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  4. #4
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    Quote Originally Posted by Mascara View Post
    Hello everyone!

    I have this equation in two variables

    y = A/x+b

    I would like to find all the values for x and y that satisfy the equation.
    I can't remember the correct procedure, can u help me?

    Thanks!
    if the equation is as you posted it ...

    y = \frac{A}{x} + b

    ... then first note that x cannot be 0.

    substitute any other value of x and determine the corresponding value of y.

    also, note that there are an infinite number of ordered pairs (x,y) that satisfy this equation.

    to get specific solution(s), you'll need a second equation that relates x and y.
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