38)+Make+a+table+and+graph+from+parametric+equation

= Given a parametric equation, make a table and draw a graph. = - Robert Carlson

I personally liked this section of trigonometry because it was very easy to comprehend, the section was very straight forward and simple. I like parametric equations because they can be used to model many different things throughout trigonometry such as: Overall, I comprehended this section very well. I wasn't confused at any part of it because it was simple.
 * Travel
 * Races
 * Trajectory
 * Projectile Motion

A Parametric Equation is an equation where the vertical and horizontal are determined by a third variable, T. Parametric Equations look like:
 * x = 2T + 1
 * y = 1/2T - 2

To set up a table of values for the parametric equation, you put in values of t into the equation and write them in your table:


 * T sdfsfs T dfsdfsdf ||  sdffsd x fsdsdf  ||  ysdfs d  y fsdfsdf  ||   sdfs (x,y)   dfsdfsd f  ||
 * -2 || -3 || -3 || (-3, -3) ||
 * -1 || -1 || -2.5 || (-1, -2.5) ||
 * 0 || 1 || -2 || (1, -2) ||
 * 1 || 3 || -1.5 || (3, -1.5) ||
 * 2 || 5 || -1 || (5, -1) ||

The input is T. There are two outputs in a parametric equation, x and y.  The coordinate is the (x,y) on a graph.



Another Example of a parametric equation could be:
 * x = T 2
 * y = T + 1

= = The graph of this parametric equation would be:
 * T sdfsfs T dfsdfsdf || sdffsd x fsdsdf || ysdfsd y fsdfsdf || sdfs (x,y) dfsdfsd f ||
 * -2 || 4 || -1 || (4, -1) ||
 * -1 || 1 || 0 || (1, 0) ||
 * 0 || 0 || 1 || (0, 1) ||
 * 1 || 1 || 2 || (1, 2) ||
 * 2 || 4 || 3 || (4, 3) ||



Problem for Class:
Create a table and graph this parametric equation:
 * x = 5T - 10
 * y = T 2

Parametric Equations Video:

[] Video Example 1 from khanacademy.