Equations of straight lines are in the form y = mx + c (m and c are numbers). m is the gradient of the line and c is the y-intercept (where the graph crosses the y-axis).


Want to download the Gradients revision notes in PDF format? The graph helps to properly analyze and give a correct interpretation of given information. It is therefore important to learn graphing fundamentals. GradientsGradients state how steep a line is. It’s also called the slope. A line may have a positive or a negative gradient. Positive …

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Simultaneous Equations

Want to download the Simultaneous Equations revision notes in PDF format? Have you heard simultaneous equation? How can we solve if the equation has two unknown value? The simultaneous equation is an equation with two or more unknown value which the value of the unknown is same to the other equation. There is a three …

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a < b      means a is less than b (so b is greater than a)a £ b      means a is less than or equal to b (so b is greater than or equal to a)a ³ b      means a is greater than or equal to b etc.a > b      means a …

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Flow Charts

Flow charts are a diagrammatic representation of a set of instructions which must be followed. Flow charts are made up of different boxes, which each have different functions. The flow chart above says think of a number, add 5 and multiply by 2. If the number is negative, make it positive.Flow charts are usually equivalent …

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Algebraic Fractions

Want to download the Algebraic Fractions revision notes in PDF format? When adding or subtracting algebraic fractions, the first thing to do is to put them onto a common denominator (by cross multiplying). e.g.      1      +      4    (x + 1)       (x + 6) = 1(x + 6) …

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