Sketch the graph of f and use your sketch to find the absolute maximum value, absolute minimum value, local maximum value(s), and local minimum value(s). If an answer does not exist, enter DNE.
f(x) = { 2x + 1 if 0 <= x < 1; 3 - 2x if 1 <= x <= 3 }
absolute maximum value: DNE
absolute minimum value: DNE
local maximum value(s): DNE
local minimum value(s): DNE