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Using the Example 9Y + 6 Factorising means to remove a common factor from both the ‘9Y’ term and the ‘6’ – this common factor will then be placed outside the brackets. For us to complete this question, we mu...

MC = marginal (extra) cost incurred by a firm when its production raises by one unit . MR = marginal (extra) revenue a firm receives from producing one extra unit of output . As a firm is trying to maximise ...

cot is a short way to write 'cotangent'. This is the reciprocal of the trigonometric function 'tangent' or tan(x). Therefore, cot(x) can be simplified to 1/tan(x). Using trigonometric rules, an alternative w...

Distance refers to how far an object has travelled in total during its motion. Displacement refers to the object's overall change in position / how far an object is now, from it's initial position.

Firstly you need to find the gradient and to do this you identify two points on the graph and the gradient is the change in the value of the y values divided by the change in the value of the x values. (y2-y...