SOLUTION: In the plane xy-plane, which of the following are point os intersection of the circles whose equations are x^2 + y^2 = 4 and (x - 2)^2 + y^2 = 4? A. (-1, sqrt(3)) , (-1, -sqrt (

Question 616450: In the plane xy-plane, which of the following are point os intersection of the circles whose equations are x^2 + y^2 = 4 and (x - 2)^2 + y^2 = 4?
A. (-1, sqrt(3)) , (-1, -sqrt (3))
B. (1, sqrt (3)), (1, -sqrt (3))
C. (1, sqrt (3)), (-1, sqrt(3))
D. (1,1), (-1,1)
E. (1,1), (1, -2)
How is it possible that a circle can be expressed by an equation? I am quite perplexed by this... How do you find the point of intersection?
Thank you so much for any help you can give me?

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi, 

points of intersection of the circles: * and ?

Sketching and observing circles intersect at x = 1:  and y = = �  

points of intersection are( 1, �  ) 



 

RELATED QUESTIONS

I can't understand

Which strategies could be used for solving the following system of... (answered by josmiceli,Earlsdon)
y=k(x-4)(x+2) 
The graph of the quadratic equation above, where k is a constant, has a... (answered by josgarithmetic)
 Which of the following circles would show the locus of points in a plane 1 unit from the  (answered by Fombitz)
f(x)=1/3 x+3 and g(x)=x-2
 	The Functions f and g above are defined for all values of x.  (answered by solver91311)
				f(x)=1/3 x+3 and g(x)=x-2
 	The functions f and g above are defined for all values... (answered by solver91311)
describe each locus of point 

1. in space, the locus of points equdistant from two... (answered by stanbon)
How many points of intersection exist if the equations (x - 5)^2 + (y - 5)^2 = 4 and y =... (answered by vleith)
Which of the following points are on the graphs of both the equation y = x + 2 and the... (answered by richwmiller)
Please Help!!!!
x-y=1 
x^2+y^2=5
 
The point (x y) is in the 3rd quadrant of the xy-... (answered by stanbon)