#lang scribble/doc

@(require scribble/manual "shared.ss"
          (for-label scheme 
                     teachpack/htdp/graphing))

@teachpack["graphing"]{Graphing Functions}

@declare-exporting[teachpack/htdp/graphing]

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): 

@defproc[(graph-fun [f (-> number?  number?)][color symbol?]) true]{
Draws the graph of @scheme[f] with the given @scheme[color].}

@defproc[(graph-line [line (-> number? number?)][color symbol?]) true]{
Draws @scheme[line], a function representing a straight line, with a given
color.} 

For color symbols, see @secref{draw}.