Asked by sheryl
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?
Answers
Answered by
MathMate
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).
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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