algebra

you rollerblade at an average speed of 8 miles per hour. the number of miles m you rollerblade during h hours is modeled by m=8h. do these two quantities have direct variation?

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asked by sheryl
  1. A direct variation should have a constant positive slope, and zero y-intercept.
    For example,
    y=4x is a direct variation, but
    y=-2x is not (negative slope),
    nor
    y=2x+100 (non-zero y-intercept).

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    posted by MathMate

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