Gradients and Equations of Lines

The general equation of a line may be wriiten as (1) where m is the gradient andis the– intercept, or whereis again the gradient. We may be asked: Find the equation of the line which passes through the two pointsand we have to find the gradient We can then use either equation (1)  in which […]

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Compound Interest

If you invest money in a savings account at say 10% per year, typically you are paid compound interest. This means that as soon as the first instalment of interest is paid, you start getting paid interest on your interest. If you were to draw a graph of the amount of money in your account […]

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