Frequency is a defining characteristic of many physical phenomena including sound and light. For sound, frequency is perceived as the pitch of the sound. For light, frequency is perceived as color. The equation of a cosine wave with frequency, f (cycles/s), is y = cos(2ft). The cosine waveform for the following frequencies are listed in the table below: f (cycles/s) 0.70 1.00 1.50 2.00

Create a script .m-file using a for-end loop to calculate the wave amplitude for each given frequency for an equal number of time values evenly-spaced by 0.05 seconds from 0 and 4 seconds. Create a single plot with all four cosine waves. Fully annotate the plot, including a legend.