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The Circle

How to graph a circle

What is the radius in the equation? x^2+y^2=4 4
What is the standard circle equation? x^2+y^2=r^2
What is the x and y coordinate in the following equation? (x-3)^2+(y+1)^2=4 x coordinate= 3 y coordinate=-1
After you find the center of the circle and plot it on the graph, how do you plot the radius? Example r=2 Count 2 units up, down, left and right to plot and then connect the dots to make the circle.
What is the standard equation for the circle whose center is at (10,6) and whose radius is 3? (x-10)^2+(y-6)^2=9
If (h,k) are not available in the standard circle form, you can set them to: (0,0)
True or False. In order to find the x and y coordinates in the standard circle form, you flip the signs for (h,k): True
Created by: a0735700