Question 326762
{{{ drawing( 300, 300, -3, 5, -2, 12, grid(1), 
circle( -2,-2,0.1),
circle( -1,-1,0.1),
circle( 0,0,0.1),
circle( 1,2,0.1),circle( 1,1,0.1),
circle( 1.5,3.25,0.1),
circle( 2.5,7.25,0.1),
circle( 3.5,13.25,0.1),
circle( 4.5,21.25,0.1),
circle( 2,5,0.1),

circle( 3,10,0.1),
circle( 4,17 ,0.1),
line(-2,-2,-1,-1),
line(-1,-1,0,0),
line(0,0,1,1),
line(1,2,1.5,3.25),
line(1.5,3.25,2,5),
line(2,5,2.5,7.25,10),
line(2.5,7.25,3,10),
line(3,10,3.5,13.25),
line(3.5,13.25,4,17),
line(4,17,4.5,21.25),
line(4.5,21.25,5,26),
graph( 300, 300, -3, 5, -2, 12, 0)) }}} 
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Note: There is a discontinuity at {{{x=1}}}.
The value for y as you approach from the left is {{{y=1}}}.
The actual value at {{{x=1}}} is {{{y=2}}}.