When a graph is displayed, press
to view the math menu.

Press to see more options.

Press to select Root which finds an x-intercept.

Press to select Maximum which finds a relative maximum.

Press to select Minimum which finds a relative minimum.

Press to select Y-intercept which finds the y-intercept of a curve.

Press to select Intersection which finds a point of intersection.

Press to select y-calculate which finds a value of x for a given y.

Press to select x-calculate which evaluates the function for a given x.

Press to select which finds a definite integral of a function.