The formula and the graph Student activity Play

The formula for linear regression Animation Play

The formula for linear regression Student activity Play

The formula for the best-fit line Student activity Play

The function  y = 2x Animation Play

The function  y = 2x + 1 Animation Play

The function  y = –2x Animation Play

The general form of the equation of a straight line Whiteboard exercise Play

The general form of the equation of a straight line Student activity Play

The gradient and the y-intercept of a straight line Whiteboard exercise Play

The gradient and the equation of a tangent Student activity Play

The gradient of a curve Animation Play

The gradient of a curve Student activity Play

The gradient of a line Whiteboard exercise Play

The gradient of a line Student activity Play

The gradient of a line perpendicular to the  x-axis Animation Play

The gradient of a straight line Whiteboard exercise Play

The gradient of a straight line Student activity Play

The gradient of the road Whiteboard exercise Play

The gradient of the tangent function Simulation Play

The gradient of the tangent to the natural exponential function Whiteboard exercise Play

The graph of the tangent Student activity Play

The graph of the tangent function Animation Play

The graph of the tangent function Student activity Play

The graph of the tangent function Whiteboard exercise Play