The diameter of the tree Animation Play

The formula and the graph Student activity Play

The formula for linear regression Student activity Play

The formula for linear regression Animation Play

The formula for the best-fit line Student activity Play

The formula for the linear function Whiteboard exercise Play

The gradient, the intercept and the graph Simulation Play

The graph of a function Whiteboard exercise Play

The graph of a function Student activity Play

The graph of the linear function Animation Play

The heating of a gas Animation Play

The heating of the air Animation Play

The inverse function of a linear function Student activity Play

The inverse linear function Whiteboard exercise Play

The line of best fit by inspection Student activity Play

The line of best fit by inspection Whiteboard exercise Play

The linear expressions Animation Play

The number of car accidents Animation Play

The relationship between angular velocity and linear velocity Animation Play

The relationship between increase in gas volume and temperature Student activity Play

The relationship between increase in gas volume and temperature Whiteboard exercise Play

The same solution of two systems of linear equations Whiteboard exercise Play

The solution set of the linear equations Whiteboard exercise Play

The x- and y-intercepts of a linear function Student activity Play

Thermal effects of changes in gas density Student activity Play