Find the maximum point of the curve from its given equation: [...]

Firstly you would have to differentiate the equation to find the expression that describes the rate of change of the parameters relative to each other using the standard differentiation method. This involves multiplying coefficient by the power the independant variable and then dropping the power down by one. Since the gradient at the maximum point is equal to zero, this equation should be equated to zero and the independant variable can be computed through rearrangement of this equation. 

After calculating the independant variable, the dependant variable can be found by substituting this back into the original equation for the curve and then both coordinates are found and presented: (x,y)