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Now you know two general equations used to write the equation of a line:


Under what circumstances is each equation easier to use? For parts (a) through (c) below, determine which method is best to use with the given information. Then, write the equation of the line.

  1. and passes through

    '' stands for slope.
    '' stands for -intercept.
    What information is given?

  2. and

  3. passes through and

    To find the slope between two points, use: