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Graphing Added Functions

Graphing added functions is simply adding two expressions together and graphing the result. This can be done algebraically or graphically. We have actually been graphing added functions for a while now, remember y=mx+b? This is the result of adding two equations:

  • y = mx
  • y = b

This is part of the Prelim Maths Extension 1 Syllabus from the topic Functions: Further, Work with Functions.

Now let’s learn to examine the relationship between the graphs of = () and = () and the graphs of = ()+ ().

Part 1

 

Part 2

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