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Activity 2 Determining the Standard Form of Equation of a Circle Determine the standard form of equation of the circle given its center and radius 1. C(0,0); radius:5 2. C(-2,7); radius:4 3. C(-8,-5); radius 3 4. c(V5,2v2); radius: \\ 10 Activity 3 Take the Challenge! Use the information provided to write the standard form equation of each circle. 1. C(-2,9); Point on the Circle:(-5,18) 2. C(13,7); Tangent to y=11