How many lattice points, whose coordinates are integers, are on circle (x + 1)^2 + (y - 2)^2 = 2? I believe the answer is 4?
Last edited by MATNTRNG; Jul 21st 2010 at 04:20 PM.
Follow Math Help Forum on Facebook and Google+
Can you justify your answer? What if the RHS was 5^2?
Originally Posted by Ackbeet Can you justify your answer? What if the RHS was 5^2? I cannot. I used GeoGebra to graph the circle and it looks like the answer is four. However, I am starting to lean towards zero because the radius is not a real number. Any thoughts? RHS?
You are correct. Look at the graph.
View Tag Cloud