Investigating the Equation of a Straight Line
Question 4.
Match the red line with lines a) to i) by changing the values of and .
(What features of the red line do you think and represent?)
(Be sure to record your responses in Problem Set 2)
Question 5.
Match your red line with at least two random lines.
(Be sure to record your responses in Problem Set 2)
Visualising the Gradient of a Line
The gradient of a line is denoted by the symbol in the straight line equation .
The definition of a gradient is: “Change in vertical distance as the horizontal distance increases by 1 unit”.
Or alternatively, the following formula may be used: .
Move the slider for to see different slope patterns.
(What value does represent?)