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    Equations of lines

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    Determine which two equations represent parallel lines. (a) y = -7x + 5 (b) y = 7x + 5 (c) y = 1/7 x + 5 (d) y = -7x + 8

    2. Write the equation of the line with x-intercept (-10, 0) and undefined slope.

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    Solution Preview

    Problem #1
    Determine which two equations represent parallel lines. (a) y = -7x + 5 (b) y = 7x + 5 (c) y = 1/7 x + 5 (d) y = -7x + 8
    Answer: (a) and (d)
    We know, if the equation of a ...

    Solution Summary

    This shows how to write an equation for a line and determine if two lines are parallel.

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