Alg 2 - x, y, and r for a point

What

Alg 2 - x, y, and r for a point

When

3/22/2018

We know that every point has an x-coordinate and a y-coordinate, but it also has an r value, which is the direct distance between the point and the origin. The values of x, y, and r will be important parts of our trigonometric ratios (which we introduce tomorrow).