Question

A circle has its center at (1, 4) and a radius of 2 units. What is the equation of the circle? (1 point)
Select one:
a. (x + 2)2 + (y + 4)2 = 2
b. (x - 1)2 + (y - 4)2 = 4
c. (x + 1)2 + (y - 4)2 = 4
d. (x - 1)2 + (y - 4)2 = 2

Answer 1

the general form is

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

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

substitute your information to get the answer

Answer 2

the choices have evaluated the radius squared.

Answer 3

so it would be D right?

Answer 4

why d ?

Answer 5

remember is radius squared 2^2 =

Answer 6

oh so b

Answer 7

correct

Answer 8

ok thank you

Answer 9

thats it