1. Write out the two equations that have the two variables you want to solve. For this example, we will find the value for "x" and "y" in the two equations "
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A quadratic involving x and y is usually in the form 'y = ax. 2. bx + c' This form is y in terms of x, so we must rearrange it. y = ax. 2. bx + c. y/a = x. 2. bx/a + c/a. y/a = x.
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It goes back a long way  I heard and used in as a startup at least 13 years ago, and it was in heavy use before that. It works for two related reasons: 1. Convenience. While we
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It gives you the value of any of the X variable on the Xaxis
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