Variations and Proportions | Basic Algebra Review Course at MATHalino

Login here. Registration is temporarily disabled.

Direct Variation

y is directly proportional to x or y varies directly as x:

$y = kx$

Inverse Variation

y is inversely proportional to x or y varies inversely with x:

$y = \dfrac{k}{x}$

Joint Variation

y is directly proportional to x and z:

$y = kxz$

Variation to n^th power of x and m^th power of z

y is directly proportional to the square of x and varies inversely to the cube of z.

$y = \dfrac{kx^2}{z^3}$