if you can graph one line, surely you can graph two.
You can see the two lines at
http://www.wolframalpha.com/input/?i=plot+y+%3D+-1%2F3+x+%2B+2%2C+y%3Dx-5+for+x+%3D+-5+to+10
Just pick the blue line left of x=0 and the purple line to the right.
Graph the piecewise function given by
f(x)= -1/3x +2, x<0
x-5,x>0
1 answer