Graph y = x and y = -x on the same xy-plane by hand. Enjoy.

harpazo Pure Mathematics Mar 20, 2018 5,785 361 83 NYC Jul 8, 2018 #1 Graph y = x and y = -x on the same xy-plane by hand. Enjoy.

MarkFL La Villa Strangiato Staff member Administrator Moderator Math Helper Jan 25, 2018 4,359 4,685 113 St. Augustine Jul 24, 2018 #2 Reactions: anemone and harpazo

harpazo Pure Mathematics Mar 20, 2018 5,785 361 83 NYC Jul 24, 2018 #3 A GIANT X passing through the origin.

MarkFL La Villa Strangiato Staff member Administrator Moderator Math Helper Jan 25, 2018 4,359 4,685 113 St. Augustine Jul 25, 2018 #4 It looks the same as: \(\displaystyle y^2=x^2\implies y=\pm|x|\) Reactions: anemone and harpazo

harpazo Pure Mathematics Mar 20, 2018 5,785 361 83 NYC Jul 25, 2018 #5 I gotta practice graphing by hand. I got used to Wolfram.