what is a direct and inverse variation
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1.Direct variation:
if y is directly proportional to x then we have y=kx for some positive k.In this case the variables are said to be in direct variation and the graph is a straight line.
2.inverse variation:
if y is inversely proportional to x, then we have y=k/x,for some positive k.In this case the variables are said to be in indirect variation or inverse variation ,and the graph is smooth curve known as rectangular hyperbola.
if y is directly proportional to x then we have y=kx for some positive k.In this case the variables are said to be in direct variation and the graph is a straight line.
2.inverse variation:
if y is inversely proportional to x, then we have y=k/x,for some positive k.In this case the variables are said to be in indirect variation or inverse variation ,and the graph is smooth curve known as rectangular hyperbola.
nishant44:
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