Illustrative Math - Algebra 2 - Unit 6 -Lesson 1

Here is a point on a circle centered at (0,0). Which equation defines the circle?

• x+y=10
• x^{2}+y^{2}=10
• x^{2}+y^{2}=100
• (x-6)^{2}+(y-8)^{2}=100

The point (3,4) is on a circle centered at (0,0). Which of these points lie on the circle? Select all that apply.

• (-3,-4)
• (4,3)
• (0,5)
• (0,0)
• (-5,0)