Question

A circle is represented by the equation shown below.

(x + 3)^2 + (y - 2)^2 = 4

Which statement is true?

The circle is centered at (3, 2) and has a radius of 2.

The circle is centered at (-3, 2) and has a radius of 2.

The circle is centered at (-3, -2) and has a diameter of 2.

The circle is centered at (-3, 2) and has a diameter of 2.

Answer 1

i know its B or D

Answer 2

@campbell_st

Answer 3

=r^2

Answer 4

so is it the radius or diameter that is 2?

Answer 5

if it's =4, then you have 2^2
since I said the equation is r^2
then you have 2^2=r^2

Answer 6

ok.. so the general form is

\[(x -h)^2 + (y - k)^2 = r^2\]

the centre is (h, k) and the radius is r

Answer 7

just match your question to the general form

Answer 8

so the answer is "The circle is centered at (-3, 2) and has a radius of 2."

Answer 9

thats correct.

Answer 10

the answer is B