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A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles. so yes it is.
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A direct variation is in the form y=ax where a is an constant.
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Earn +20 ptsQ: Is direct variation a function
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Is y9x 1 a direct variation function?
No.
Does the function y equals 8x represent a direct or inverse variation?
Direct
Is the direct variation of two variables always a linear function?
YES...A direct variation is a linear relationship in which y-intercept is always 0.
What does k correspond to in a direct variation function?
k is the constant of variation and is the gradient (slope) of the relevant graph.
Which of the following represents a direct variation function?
Any function of the form Y = cX where X and Y are variables and c is a constant.
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