State the constant of proportionality connecting $y$y and $x^2$x2 for the following graph.
State the constant of proportionality connecting $y$y and $\frac{1}{x}$1x for the following graph.
State the equation of the graph in the form $y=kx^2+c$y=kx2+c.
State the equation of the graph in the form $y=\frac{k}{x}+c$y=kx+c.
Understand the terms: function, domain, range (image set), one-one function, inverse function and composition of functions.
Use the notation f ^(–1)(x).
Explain in words why a given function is a function or why it does not have an inverse.
Find the inverse of a one-one function.
Transform given relationships, including y = ax^n and y = Ab^x, to straight line form and hence determine unknown constants by calculating the gradient or intercept of the transformed graph.