10.2.2 Exam Question Type 2

These kinds of questions involve a scenario from a real-life situation which is represented with a straight-line model. It can involve asking you to derive equation from a given scenario or answer scenario-specific questions from given graph and interpreting the meaning of intersection of two straight lines in the context of scenario. Generally, these questions are between moderate to hard level of difficulty.

The following are relevant past exam questions:

(Note: The links will direct you to relevant question in the file on PC only NOT mobile)

2014Q26d, 2018Q27b, 2010Q24b, 2015Q27c, 2017Q28a, 2018Q27d, 2019Q36, 2020Q24

Check out the videos below relevant to these questions.

HSC Maths Standard 2020 Question 24 - StudyNinja

by StudyNinja (click to view channel)

Solves HSC Maths Standard 2020 Question 24 (Simultaneous Linear Relationship) - StudyNinja

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HSC Maths Standard 2019 Question 36 - StudyNinja

by StudyNinja (click to view channel)

Solves Question 36 from Maths Standard 2019 HSC exam (Linear Relationship).

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You can always expect a new scenario in the exam. The skill to focus on should be: ability to make up straight-line equation from given scenario, understand what values on the given line are possible and what are not and why not, what intersection means in the context of scenario and what does are where one line is above another line imply.