This is an ellipse. It's clear there are an infinite number of points that satisfy this equation, since the relation is continuous.
(x - 2y)^2 + (y + 1)^2 - 5=0 - Wolfram|Alpha
This is an ellipse. It's clear there are an infinite number of points that satisfy this equation, since the relation is continuous.
(x - 2y)^2 + (y + 1)^2 - 5=0 - Wolfram|Alpha