Section 1.6 Mathematical Modeling direct variation direct variation as nth power inverse variation joint variation

for some nonzero constant k Direct Variation y varies directly with x y is directly proportional to x y = kx, for some nonzero constant k k is the constant of variation or the constant of proportionality example on worksheet

Direct Variation as nth Power y varies directly as the nth power of x y is directly proportional to the nth power of x y = kxn , for some nonzero constant k example on worksheet

for some nonzero constant k Inverse Variation y varies inversely as x y is inversely proportional to x y=k/x , for some nonzero constant k example on worksheet

for some nonzero constant k Joint Variation z varies jointly as x and y z is jointly proportional to x and y z = kxy , for some nonzero constant k example on worksheet