Search over 10,000 free study notes

At turning points, the gradient is 0. Differentiating an equation gives the gradient at a certain point with a given value of x. To find turning points, find values of x where the derivative is 0. Example: y...

A quadratic equation is one that includes x 2 as the highest power of x. Factorising is achieved in 3 steps. Let’s consider the example x 2 -3x-3=1 1) Put the equation into the form ax 2 +bx+c=0 x 2 -3x-4=02...

On the night of the 20/21st June 1791, King Louis XVI attempted to flee in an event that was later named the flight to Varennes . His plans were shrouded in secrecy, but he probably intended to flee to Montm...

Protectionism is a government philosophy towards foreign trade. According to this philosophy, governments should use tariffs and quotas to protect domestic firms from foreign competition. Protectionist trade...

A barrier to entry is an obstacle that prevents a new entrant from joining a market. They exist within both oligopolistic and monopolistic market structures. Barriers to entry matter because in the short run...