How to graph a circle
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What is the radius in the equation? x^2+y^2=4 | 4
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What is the standard circle equation? | x^2+y^2=r^2
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What is the x and y coordinate in the following equation? (x-3)^2+(y+1)^2=4 | x coordinate= 3
y coordinate=-1
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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.
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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
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If (h,k) are not available in the standard circle form, you can set them to: | (0,0)
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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
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