1. Standard form to Equation of Circle
Completing the Square
Standard form to Equation of Circle

2. Process 1 variable
Group variables – coefficient of first term should be 1
Move other terms (usually integers or constant to other side)
Take coefficient of the second term divide by 2 and square it
Add value from step 3 to both sides
Factor – you have a trinomial and you are going to make it a binomial squared
(x sign of second term square root of third)squared

3. Example

4. Try these

5. 2 Variables
What do you think you would do if there were two variables squared, like a circle.

6. Complete the square twice
Follow same six steps we discussed, but do them for both the x variable and the y variable.
When completing the square for each variable add the value inside the ( )

7. Practice Due Wed
Come up with two questions to review for the test, can be from quizzes or homework.