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#### Sabrina102

##### New member

- May 30, 2020

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1. Inflation rises and falls in a cyclical manner. If inflation is highest at 4.8% and lowest at 1.3%, what c for the equation y = a sin(k(x + d)) + c?

2. If the moon changes from a full moon to a half moon in 13 days, how many more days does it take for it to get back to a full moon and what would the period, k, equal?

3. Explain why a circle of radius 4 cm and a circle of radius 13 m have the same number of radians?

4. Explain why when you multiply by a number greater than 1 inside the argument of a trigonometric function, the period of the function decreases and when you multiply by a number less than 1, the period increases.

5. For the function y = 4sin (pi/ 4 x - pi/2 ) - 3 list when the average rate of change is positive, negative, and zero, considering the beginning of the interval to be x = 4.