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Write the standard form of the equation of each circle described.
a.) center at (0,0), radius 3 Square root 3
 11 months ago
 11 months ago
Write the standard form of the equation of each circle described. a.) center at (0,0), radius 3 Square root 3
 11 months ago
 11 months ago

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haleyking345Best ResponseYou've already chosen the best response.0
dw:1367681738477:dw
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
The equation (for circles at the center) in general is: x^2 + y^2 = r^2 All you have to do is substitute in for the "r".
 11 months ago

haleyking345Best ResponseYou've already chosen the best response.0
3 square root of 3 squared. What would that equal?
 11 months ago

rman3Best ResponseYou've already chosen the best response.0
The standard form is x^2 + y^2 = r^2 3sqrt3 is equal to 27. Square the 3, which is 9. Then the sqrt of 3 which is just 3.
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
So, (9)(sqrt(3))^2
 11 months ago

rman3Best ResponseYou've already chosen the best response.0
Since the center is at 0,0 you don't need to change the x2 or y2
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
And (sqrt(3))^2 = 3
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
so, (3)^2 x (sqrt(3))^2 = 9 x 3 = 27
 11 months ago

haleyking345Best ResponseYou've already chosen the best response.0
ok, that makes perfect sense. Thank you so much!!!!
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
So, you have: x^2 + y^2 = (3 x sqrt(3))^2 x^2 + y^2 = 27
 11 months ago

tcarroll010Best ResponseYou've already chosen the best response.1
Good luck in all of your studies and thx for the recognition! @haleyking345
 11 months ago
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