Variation and Problem Solving
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What equation defines direct variation? | y=kx
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What equation defines inverse variation? | y=k/x
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What equation defines joint variation? | y=kxz
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y=(kxz^2)/h<br>is an example of:<br>A. direct variation<br>B. inverse variation<br>C. joint variation<br>D. combined variation | D. combined variation
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Fill in the blank:<br>In the equation y=kx, "k" represents the ________. | constant of variation<br>or<br>constant of proportionality
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Fill in the blank:<br>In the equation y=k/x, y varies _________ as x. | inversely
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If y varies directly as x, what is the constant of variation k:<br>y=8 when x=56 | k=1/7
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What equation represents the statement?<br>m varies jointly as j and the cube of c. | m=kjc^3
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What equation describes the variation?<br>n varies directly as r and inversely as t^3 | n=(kr)/t^3
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If y varies inversely as x, what is the constant of variation and the inverse variation equation for:<br>y=5 when x=3 | The constant of variation is: k=15<br><br>The inverse variation equation is: y=15/x
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Created by:
Morris Cuyler
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