Drawing straight line graphs and finding their slope
Linear relations and modelling
General Maths Units 1 and 2 (2023+)
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Welcome
Learning objectives
Recap of past learning
A straight line?
Lots of ways of writing the equation of a straight line
Plotting the points on a straight line graph
Example 1: Plotting the points on a straight line graph
Example 2: Plotting the points of a straight line graph
Using the CAS to draw straight line graphs
Using the CAS to change how much we see
Using the CAS to get a table of values
Positive and negative slopes
Examples of positive and negative slopes
Lines with the same slope
Gradient is a measure of slope
Finding the gradient of a line
Example 2
Final words
This is another video in the Year 11 General Maths (VCE Units 1 and 2) course looking at algebra and linear. Straight line graphs are going to be really important in Year 12 and so I take a look at what a straight line is and how we can draw straight lines by plotting points. I look at the important parts of a straight line such as the y-axis intercept and the slope as well as the concepts behind positive gradients, negative gradients, parallel gradients and how we might be able to find the measure of the slope. There are a number of worked examples which are all well explained. There is even more humour!
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There are no current errors with this video ... phew!