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# record 1: header: parent, keywords
# record 2: calling parameters
# record 3: submit buttons
# record 4: html form content
:geometry, analytic geometry
line, plot line, line plot, line defined by equation, line equation
linear equation, linear equation plot, plot linear equation, graph, graphing
:precision, 20
operation, line plot
size, 650x480
picturesize, 300x360
:, Plot
:
$submit1
line defined by
<input type="text" size="40" name="formula" value="3x + 5y = 7">