Circle Equations in Standard Form

Circle Equations in Standard Form

Observe how changing the center coordinates and radius in the standard form of a circle's equation affects its graph.


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Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Offene Frage 1

Write an equation to describe the circle with center at (0,0) and a radius of 2. How does the equation simplify when the center is the origin?

Eingabe von Text und mathematischen Symbolen

Offene Frage 2

State the center and radius of a circle defined by the equation .

Eingabe von Text und mathematischen Symbolen

Offene Frage 3

Chris says that is not the equation of a circle because there should be minus signs instead of plus signs inside the parentheses. Do you agree with this statement or not? Why?

Eingabe von Text und mathematischen Symbolen