Graphing Circular Functions

Today in class, we learned how to graph circular functions. The θ values goes on the x-axis and the trigonometric function values at θ goes on the y-axis. Basic equations in this graph would be: y=asinbx, y=acosbx and y=atanbx. The period for sinx and cosx functions is 2π/ |b| and the period for tanx function is π/b. The amplitude indicates how much energy the wave contains. The a in the expression y = a sin x represents the amplitude of the graph. In addition, the domain is the number included in the x-axis while the range is the number included in the y-axis.


For example: 
1) y=sinx 

X 0 π/2 π 3π/2 2π

Y 0 1 0 -1 0