This webpage checks how well you understand secant curves, i.e. graphs of the trigonometric equation y = a*sec(bx). The value of |a| is called the amplitude and b is related to the frequency (= number of times the curve repeats over an interval of [0,1]). Below is a graph for specific values of a, b, c. Your aim is to find these values and plot the graph of the same function.

This page requires IE+SVGviewer 3.01 or Mozilla+SVG setBorder(0); initPicture(-5,5) axes(1, 1, "labels", "grid") stroke = "blue"; strokedasharray = "10,10" plot("a*sec(b*x)") // the predefined function stroke = "red"; strokedasharray = null // Replace the "0" below with a matching function // using numbers instead of a,b and click Update. plot("0")   For another example click When you are done, you can print this page (in landscape mode).

Pointer coordinates: (x,y)