APFIVE Properties Of An Implicitly Defined Circle
All of the following statements regarding the implicit equation $$x^2+y^2-4=0$$ are true except:
A
Rewriting the equation as $$x^2+y^2=4$$ shows that it represents a circle with radius 2.
B
The equation $$x^2+y^2-4=0$$ represents a hyperbola.
C
For any $$x$$ such that $$-2 < x < 2$$, there exist two corresponding $$y$$ values (one positive and one negative).
D
The graph of the equation is symmetric about both the x-axis and the y-axis.
Question Leaderboard
Not enough data yet to show leaderboard.