1. If X = a and X = -a, then what will be the graph? where a > 0

2. If Y =b and Y = -b, then what will be the graph? where b > 0

The first will produce vertical lines through a and -a on the x axis

The second will produce horizontal lines through b and -b on the y axis

Could you draw the graph, please so I can understand the concept better?

See the graph, here :

https://www.desmos.com/calculator/v3audsbcke

a = 2 , -a = -2, b = 4 and -b = -4

Thanks a lot.