Which are examples of the use of parametric equations?

A. Position of a person on a ferris wheel.

B. Position of a ball after being thrown.

C. A and B

D. Neither A nor B

C depending on how the equations are set up.

Position involves x and y, and both depend on the time t.

C. A and B

Both the position of a person on a Ferris wheel and the position of a ball after being thrown can be described using parametric equations. Parametric equations are commonly used to describe the motion of objects in various scenarios.

The correct answer is C. A and B.

Parametric equations are a system of equations that express the coordinates of a point in terms of one or more parameters. They are commonly used to describe the motion or position of objects in mathematics and physics.

In the case of a person on a Ferris wheel (option A), the position of the person can be expressed using parametric equations. The parameter could be the time or angle, and the equations would describe how the person's position changes as the wheel rotates.

Similarly, the position of a ball after being thrown (option B) can also be described using parametric equations. The equations would define the ball's position as a function of time or the angle at which it was thrown, allowing us to track its motion.

Therefore, both options A and B are examples of the use of parametric equations.