What do you think the graph of \(y = \cos 2x^\circ\) would look ... point when \(y = - 1\) The graph looks like: Now try the example questions below.

In this part you do not have to sketch the graph and you may even be given the sketch of the graph to start with. For a quadratic equation of the form \(y = k{(x - a)^2} + b\), the following ...

If you understand the definition of a mathematical function ... marking points or lines, the graph is spread across the XY-axis. Eg. Let us consider this example of a person’s salary across ...