Question

A circle is represented by the equation below:

(x - 5)2 + (y + 7)2 = 49

Which statement is true? (5 points)
Select one:
a. The circle is centered at (-5, 7) and has a radius of 7.
b. The circle is centered at (5, -7) and has a diameter of 7.
c. The circle is centered at (5, -7) and has a radius of 7.
d. The circle is centered at (-5, 7) and has a diameter of 7.

Answer 1

@UnkleRhaukus

Answer 2

the general equation of a circle, radius r, centred at (a,b) is

(x-a)^2+(y-b)^2=r^2

Answer 3

ok i get the formula

Answer 4

keep going...

Answer 5

:)

Answer 6

you can do it

Answer 7

do i just plug in numbers basically

Answer 8

um yeah, find a,b,r by direct comparison

Answer 9

is it C

Answer 10

@jim_thompson5910

Answer 11

Yes. It is C

Answer 12

really?

Answer 13

yes

Answer 14

can u help me on som more please

Answer 15

ph and can i have a medal please

Answer 16

Are you doing a test or what?

Answer 17

yea need help on some of them

Answer 18

It is against the code of conduct to cheat on tests.