Vip quality exercise

So folks, How this come to be solved?

Graphically represent the points of the plane that verify:

a) 3x+4y>12 ^ 3x+4y>0
b) 3x+4y>12 v 3x+4y>0

Lol i know how to do it individually but I do not know what "^" and "v" means.

>>4
Wow, way to say the exact same thing as >>3 but in ten times as many words.