## anonymous one year ago A circle has its center at (-1, 2) and a radius of 3 units. What is the equation of the circle?

1. anonymous

hint: $$\bf (x-{\color{brown}{ h}})^2+(y-{\color{blue}{ k}})^2={\color{purple}{ r}}^2 \qquad center\ ({\color{brown}{ h}},{\color{blue}{ k}})\qquad radius={\color{purple}{ r}}$$

2. anonymous

so would it be (x + 1)2 + (y + 2)2 = 9

3. anonymous

why not just plug in the values given? :) see what you get

4. anonymous

@jdoe0001

5. SolomonZelman

There is on mistake in (y+2)²

6. anonymous

why not just plug in the values given? :) see what you get so... plug them in

7. anonymous

ok thank you

8. anonymous

it was right