A circle is represented by the equation shown below.

(x - 7)2 + (y - 8)2 = 121

Which statement is true?

The circle is centered at (7, 8) and has a diameter of 11.

The circle is centered at (7, 8) and has a radius of 11.

The circle is centered at (-7, -8) and has a radius of 11.

The circle is centered at (-7, -8) and has a diameter of 11.

Question

A circle is represented by the equation shown below.

(x - 7)2 + (y - 8)2 = 121

Which statement is true?

The circle is centered at (7, 8) and has a diameter of 11.

The circle is centered at (7, 8) and has a radius of 11.

The circle is centered at (-7, -8) and has a radius of 11.

The circle is centered at (-7, -8) and has a diameter of 11.

anonymous · Answer

cand seem top decide between B and C

lgbasallote · Answer

hint:

$$(x-4)^2 + (y-3)^2 = 16$$
this means the center is at (4,3) and radius is 4

does that help?

anonymous · Answer

not really. i know the radius is 11 bc the diameter is 121 i just cant seem to figure out if both 7 and 8 or negative or positive.

anonymous · Answer

wait by yur example the 4 and 3 in the equation are negative but in the parenthesis they are positive  never mind thank you .  it was helpful

lgbasallote · Answer

welcome ^_^