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1.11 Graphing Functions: "graphing.ss"

The teachpack provides two operations for graphing functions in the regular (upper right) quadrant of the Cartesian plane (between 0 and 10 in both directions):

(graph-fun f color)  true
  f : (-> number?  number?)
  color : symbol?
Draws the graph of f with the given color.

(graph-line line color)  true
  line : (-> number? number?)
  color : symbol?
Draws line, a function representing a straight line, with a given color.

For color symbols, see Simple Drawing: "draw.ss".