A function \(f\) has an absolute maximum at \(c\) if \(f(c)\geq f(x)\) for all \(x\in D\text{,}\) the domain of \(f\text{.}\) The number \(f(c)\) is called the ...
Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.