Problem 165 of 7
Use completing the square to answer the circle problem Find radius of x^2+y^2-4x-6y-12=0.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
transform equation before answering graph/point question.
Hidden until you reveal it.
Problem begins in general form and must be transformed before answering.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Group x and y terms.
2. Complete both squares.
3. Use standard form to answer the requested graph or point question.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Reading center directly from general linear coefficients without completing square.