
    Price of MTA Subway Ride vs Pizza Slice in NYC
    
    R  1.5 |
    a      |
    t  1.0 |-------------------------------
    i      |
    o  0.5 |
           --------------------------------
    	   1    1    1    1    2    2    2
    	   9    9    9    9    0    0    0
    	   8    8    9    9    0    0    1
    	   0    5    0    5    0    5    0
    	               Time