The straight line through two points will have an equation in the form \(y = mx + c\). We can find the value of \(m\), the gradient of the line, by forming a right-angled triangle using the ...

To solve linear systems of differential equations efficiently, representing the system in matrix form is invaluable. If we ...

Simultaneous equations Simultaneous examples with no common coefficients Forming and solving simultaneous equations Linear and quadratic equations - Higher Solving simultaneous equations graphically ...

Some important points to revise from the chapter are: • An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear equation in ...