Direct Variation | Year 11 General Mathematics | MaffsGuru.com
Direct Variation | Year 11 General Mathematics | MaffsGuru.com
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This is a new video in the series looking at Variation for the Year 11 (VCE Units 1 and 2) General Mathematics course. This content becomes really important as a basis for the learning which will take place in General Maths Units 3 and 4. Looking at the idea of Direction Variation and Proportion we look at how we can find constants of proportionality for straight lines and curves. There are a number of worked examples which show how to apply the theory and they are all explained in an easy to understand way.
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00:10 Welcome
00:36 Learning objectives
00:50 Recap of past learning
01:23 A new symbol: Proportional To
03:21 Changing the proportional sign to an equals sign
05:16 Graphs and Proportionality
06:16 Finding the constant of proportionality (k)
09:09 Not all graphs start as a straight line
11:09 Example 1
14:17 Example 2
16:07 Example 3
19:41 Example 4
23:48 Final words and summary
This maths video has been created for courses which are delivered in Australia but, as Maths is a constant, it is equally helpful for students in the USA, UK and other countries who are looking for good maths videos for both high school and middle school.