SOLUTION: Find the intersection of y=2 and x²+y²=4 algebraically.

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Question 1084657: Find the intersection of y=2 and x²+y²=4 algebraically.
Answer by Alan3354(69443) About Me  (Show Source):
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Find the intersection of y=2 and x²+y²=4 algebraically.
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x^2 + y^2 = 4
sub 2 for y
x^2 + 4 = 4
x = 0
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0 + y^2 = 4
y = ±2
--> (0,-2) and (0,2)