Jun 20, 2025 · Learn how to use straight line graphs for modelling scenarios for your A level maths exam. This revision note covers strategies and worked examples.

A video revising the techniques and strategies required for all of the AS Level Pure Mathematics chapter on Straight Line Graphs that you need to achieve a grade C-A* in your A-Level...

Determine, giving full reasons for your answer, whether l1 and l2 are parallel, perpendicular or neither. (a) Find an equation of the straight line passing through the points (–2, 5) and (5, –1). …

Home > Pure Mathematics > Straight line graphs y=mx +c Equations of straight lines Parallel and perpendicular lines Length and area Modelling with straight lines

Straight Line Graphs in A Level Maths involve the study of linear equations, providing tools to interpret and create graphs representing proportional relationships, gradients, and intercepts. …

The line l has equation y = 3x + k where k is a constant. Given that l is a tangent to C, (4) (b) find the possible values of k, giving your answers as simplified surds.

be familiar with the equation of a straight line; understand what information is needed to define a straight line; appreciate the significance of the gradient of a straight line; be able to solve …

On this page you will learn how to find the equation of a straight line and how to convert between the forms of straight line equation, as well as finding the length and midpoint of straight line …

Straight line equations come in the form of = + , where is the gradient and is the intercept. In the question we are given that the gradient is 2, hence = 2, and that the intercept is at (0,−7), …

Key points A straight line has the equation y = mx + c, where m is the gradient and c is the y-intercept (where x = 0). The equation of a straight line can be written in the form ax + by + c = …