Problem 10 of 7
Identify center and radius of circles center (6,-3), radius 8 and x^2 + y^2 - 2x - 8y - 8 = 0.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
define circle features precisely.
Hidden until you reveal it.
Circle descriptions must provide enough information to identify center and radius.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Read or compute each center.
2. Read radius directly or halve diameter.
3. State both circle features precisely.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using diameter as radius without halving.