Common to all four courses, linear functions and graphs establish the foundational language of straight-line relationships. Students work with multiple forms of the equation of a line — gradient-intercept, general and point-gradient — and apply conditions for parallel and perpendicular lines. In AI, piecewise linear models are also addressed with practical contexts such as mobile phone charges and conversion graphs, reflecting the modelling-first philosophy of that course.
Start here
Start by downloading the cheat sheet and the vocabulary below. After that, move to the video lessons with their respective exercise lists.
Video lessons
Learn the content with the videos provided and reinforce your comprehension by practicing with the exercise list above.
Take the mock exams
It’s time to put your knowledge to the test with our mock exams — the closest experience you’ll get to the real IB Math exams. Note: read the instructions on taking mock exams here.
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