2E - Linear models
The skills developed so far in this section can be used to model different ‘real-world’ problems where the relationship between two variables is linear, such as the cost of a taxi or phone calls.
2E - Example 1: Modelling with linear equations
Two taxi services operate in Ballarat. Terry’s Taxis have an initial fee of \($8.50\) and a rate of \($2.50\) for every minute (or part of) after that. The other taxi service is operated by Glenda. Glenda’s taxi service charges an initial fee of \($13\) and has a rate of \($1.90\) for every minute (or part of) after that.
Andy needs to get from Alfredton to the “Bluepebble” and he knows it will take him exactly 10.5 minutes.
James doesn’t know exactly how long it will take him to get to the “Bluepebble” to meet Andy, so he decides to work out which is cheaper in the long run.
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2E - Example 1: Video solution
2E - Example 1: Practice
Question 1: ABC Question 2: ABC 2E - Example 1: Solutions
Question 1: ABC Question 2: ABC |