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It can be daunting to revise for foreign language exams and often people don't know where to start. Trust me, I've been there. However, I've found that the best way to structure your exam preparation is t...

Using the theory of the firm diagram, firms select a quantity such that Marginal Revenue (MR) is equal to Marginal cost (MC).
Using the diagram, as shown, you draw a vertical line up from this inters...

One good way is to use the formula y - y₁ = m(x - x₁)where (x₁,y₁) is a point on the line and m is the gradient of the line. This is derived from the definitio...

This equation is an example of a quadratic equation, which is noticeable by the presence of the x² term on the left hand side. We begin to solve these types of equations by moving all the terms...

Token economies are a form of behaviour modification based on the principle of operant conditioning. Patients are given tokens for demonstrating good behaviours such as personal hygiene. These tokens act ...