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Home > CALC > Chapter 8 > Lesson 8.3.3 > Problem 8-127

8-127.
  1. Multiple Choice: If x2 + y2 = 25 then = Homework Help ✎

Uh-oh! None of the multiple choice options match! That does not mean you are wrong. Look at the original equation of the circle. What does x² + y² equal? Substitute that value and find your solution.