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Graphing Compound Inequalities on Number Line

Graphing Compound Inequalities on Number Line
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2015-10-22 16:53
Coordinate GeometryInequalityGraphing
This example demonstrates how to graph and display solutions to compound inequalities on a number line. It involves core math concepts like inequality solving, number line representation, and interval notation. GeoGebra commands and objects used include Textfield, Sequence, and various objects like s, l, j, i, h, f, a, b, c, d, e, n, m, o, inputBox5, inputBox6, p, q, n_1, r, text1, text2, B, A, k, Problem, text12, text13, inputBox1, inputBox2, t, u, v, D, C, text3, g, A', B', C'. It is suitable for high school students learning about inequality solving and number line graphing.

GeoGebra Commands & Parameters

  1. Textfield(m) → inputBox5
  2. Textfield(o) → inputBox6
  3. Textfield(c) → inputBox1
  4. Textfield(e) → inputBox2
  5. Sequence((i, (-0.6)), i, ceil(x(Corner[1])) + 1, floor(x(Corner[2])) - 1, 1) → listTicks
  6. Sequence(Text[i, (i - ticksize / 2, (-1.2))], i, ceil(x(Corner[1])) + 1, -10, ticksize) → listxaxisNumbersleftmost
  7. Sequence(Text[i, (i - ticksize / 2, (-1.2))], i, 10, floor(x(Corner[2])) - 1, ticksize) → listxaxisNumbersRightmost
  8. Sequence(Text[i, (i - ticksize / 5, (-1.2))], i, -9, 9, ticksize) → listxaxisNumbersMiddle