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Recall that a geometric progression is a sequence (a_n) defined ...

The chain rule is incredibly useful when differentiating compositions of funcions. 

Until now you have really only met dy/dx as your derivative. By imagining dy/dx as a fraction, you...

The y=mx+c equation is for a straight line (also known as 'linear') graph.

The 'y' is representative of the y-value, 'm' represents the gradient (how s...

The first step is to make sure that the coefficient of x^2 is 1 by dividing all terms by a (where a equals the coefficient of x^2). Then we must write the quadratic e...

There are two ways you can take the derivative of a^x.
1) 
Let y = a^x  now we're trying to find dy/dx
2)
ln(y) = xln(a)  take logs of both sides and use log rules
3)
(dy/dx)...