## How do you describe a parametric equation?

parametric equation, a type of equation that employs an independent variable called a parameter (often denoted by t) and in which dependent variables are defined as continuous functions of the parameter and are not dependent on another existing variable. More than one parameter can be employed when necessary.

### What is the parametric equation of motion?

Projectile motion depends on two parametric equations:x=(v0cosθ)t x = ( v 0 c o s θ ) t andy=−16t2+(v0sinθ)t+h. y = − 16 t 2 + ( v 0 s i n θ ) t + h . Initial velocity is symbolized asv0.

**What is the parametric equations of a circle?**

The equation of a circle in parametric form is given by x=acosθ , y=asinθ

**Why parametric equations are used?**

Parametric equations are commonly used to express the coordinates of the points that make up a geometric object such as a curve or surface, in which case the equations are collectively called a parametric representation or parameterization (alternatively spelled as parametrisation) of the object.

## What is parametric equation of ellipse?

So, the parametric equation of a ellipse is x2a2+y2b2=1.

### What is a parametric equation?

In the example in the section opener, the parameter is time, The position of the moon at time, is represented as the function and the position of the moon at time, is represented as the function Together, and are called parametric equations, and generate an ordered pair Parametric equations primarily describe motion and direction.

**How do mathematicians predict the path of a projectile?**

The outcome may depend partly on other factors (for example, the wind), but mathematicians can model the path of a projectile and predict approximately how far it will travel using parametric equations. In this section, we’ll discuss parametric equations and some common applications, such as projectile motion problems. Figure 1.

**How do you find the horizontal distance of a projectile?**

Depending on the units involved in the problem, use g = 32ft/s2 or g = 9.8m/s2. The equation for x gives horizontal distance, and the equation for y gives the vertical distance. Given a projectile motion problem, use parametric equations to solve. The horizontal distance is given by x = (v0cosθ)t.

## How can I get a sketch of the parametric curve?

Getting a sketch of the parametric curve once we’ve eliminated the parameter seems fairly simple. All we need to do is graph the equation that we found by eliminating the parameter. As noted already however, there are two small problems with this method. The first is direction of motion.