Question

Write the standard equation of the circle in the graph.



(x + 3)2 + (y – 2)2 = 9
(x – 3)2 + (y + 2)2 = 9
(x – 3)2 + (y + 2)2 = 18
(x + 3)2 + (y – 2)2 = 18

Answer 1

Hint: Find the radius, and the center coordinates; plug them into the standard equation of a circle.

Answer 2

\[(x - h)^2 + (y - k)^2 = r^2 \] Where (h,k) = center coordinates, r = radius.

Answer 3

is the radius 2.5

Answer 4

Nopes. It's 3.

Answer 5

Notice how every half unit on the graph represents a unit.

Answer 6

o ok

Answer 7

1.5 units on graph = 3 units.

Answer 8

And what about the center coordinates?

Answer 9

(3,-2)

Answer 10

Naw naw.

Answer 11

You substitute h and k with 3 and -2.\[(x - 3)^2 + (y - (-2))^2 = 3^2 \]

Answer 12

What does that give you?

Answer 13

y does it say math processing error?

Answer 14

Never mind that. Refresh the page.