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If you are given a simple quadratic equation, for example x²+6x+8=0, then in order to factorise this you must find two numbers that add together to make the coefficient of x in the e...

Question:

Line A has a gradient of 4 and passes through point (5,6).<...

Composite functions can be thought of as 'functions within functions'. For example, let's suppose that 

f(x) = x³

g(x) = x + 5

defined for all real numbers.

...