Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Inverse and Direct Variation
Twenty problems present a variety of practice with inverse and direct variation. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button...
Purple Math
Purplemath: Variation Equations
Purplemath offers an extensive explanation of direct and inverse variation, containing several examples and real-world applications.