Three relationships are described below:

I. The amount of time needed to mow a yard increases as the size of the yard increases.

II. The amount of time needed to drive from city A to city B decreases as the speed you are driving increases.

III. The income of a worker who gets paid an hourly wage increases as the number of hours worked increases and increases as the salary rate increases.

What type of variation describes each relationship?

I is joint, II is inverse, and III is direct.

I is direct, II is inverse, and III is joint.

I is joint, II is direct, and III is inverse.

I is direct, II is joint, and III is inverse.

Guest Dec 3, 2017