Answer: i)36 degrees ii) 7
Step-by-step explanation:
i) the period is changed by what number is in front of the x. the period of a regular cos graph is 360 degrees, however, since there is a 10 in front of the x that means it goes 10 times as fast, shortening the period to 36 degrees (360/10).
ii)the number in front of cos signifies the amplitude, which is 7.
