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Math Help - tan ?

  1. #1
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    tan ?

    how to figure slope and tan
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  2. #2
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    Re: tan ?

    Hello, marlene!

    What are we given?
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  3. #3
    MHF Contributor

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    Re: tan ?

    If you are given two points (x_0, y_0) and (x_1, y_1), then the slope of the line through those two points is given by \frac{y_1- y_0}{x_1- x_0}. If you are given an equation, say Ax+ By= C, you can solve for y, getting y= -\frac{A}{B}x- \frac{C}{B} and the slope is -\frac{A}{B}.

    Those formulas are given in any Calculus text aren't they?
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