Question 27 in SAT Digital Practice Test #3, MATH Section 2 Module 1 - x^2+x+y^2+y=199/2

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This video explains the answer to Question 27 from the SAT Digital Practice Test 3 Section 2 Module 1 Math portion. The question is The graph of x^2+x+y^2+y=199/2 in the xy-plane is a circle. What is the length of the circle's radius. This problem involves standard equations of circles and completing the square. Calculators ARE allowed on this section. This practice test is provided for free by the College Board. This video will show you how to do this problem and the logic behind it.

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I have over 15 years' experience helping children, teens, and adults improve at math in topics ranging from addition to algebra to calculus and beyond. My goal is to make math easy to understand for anyone who wants to learn :-)

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You Can Learn Math with Alyssa

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Thank you so much for watching - happy learning! 😊

YouCanLearnMathwithAlyssa

I found multiple explanations for this problem, but none made sense until this one. Thank you :D

sarah-dqrl

Just did the practice tests and used youre videos as a guide to the ones I didn't understand and it was so helpful! Do you have any plans doing module 2 and practice test 4?

archangel

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