Download
1 / 15
150 likes | 409 Views
Ch 9 Polar Coordinates and Complex numbers. Lesson 9.1 Graphing polar points Graphing simple polar equations Finding the distance between 2 polar points. Points in a Polar Grid are given by ( r , q ) - the values of r and q can be positive or negative.
E N D
Ch 9 Polar Coordinates and Complex numbers Lesson 9.1 Graphing polar points Graphing simple polar equations Finding the distance between 2 polar points.
Points in a Polar Grid are given by (r, q) - the values of r and q can be positive or negative. • Each point can be given by several different ordered pairs. • The polar equation r = k is a circle. • The polar equation q = k is a line.
Start by finding the angle or “argument”. Then count r from the “pole” out. Move forward toward the angle if r is positive. Move backward away from the angle if r is negative.
If the polar equation is r = n, the graph will be a circle with the radius of n Try graphing this in your calculator now! Set your mode from function to polar. Press y= and you now see r=. Type in 3 then zoom standard, zoom square.
Now lets try the following problems. • Copy the questions on your notebook paper. • Use the polar paper given you. • Write your answers. • Check for correctness.
