Problem 17 of 7
Complete the square for circle equation x^2+y^2+8x-2y=-1.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
group x/y terms and identify center/radius.
Hidden until you reveal it.
Group x/y terms and identify center and radius for translated circles.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Group x terms and y terms.
2. Complete the square for each group.
3. Rewrite in circle standard form and read center/radius.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Forgetting to add completed-square constants to both sides.