Regions in the Plane

Whereas equations are represented by curves on the number plane, inequations are represented by regions with the curves acting as boundaries.

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11Ext1 Topic 3: Graphs & Inequations QOB

Defining absolute value and using the idea to solve equations, inequations and draw graphs.

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Knowing about the symmetry of a function can assist when having to draw the function.

lesson notes: 03 symmetry

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