Slide 2:
Inverse variation is a comparison of two quantities such that when one
quantity increases the other decreases.
If y varies inversely as x, then
Slide 3:
Translating:
In a spherical balloon with a constant mass of air, the pressure varies
inversely as the cube of the radius.
In other words: p varies inversely as the cube of r.
So. ..
Slide 4:
Solve.
Y varies inversely as the cube of x. If y = 5 when x = 2, find y when x = 6.
First find the equation.
Solve for k.
Substitute and solve the problem.