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How to find the function based on the given graph?

Given the graph of a function is y = A sin (Bx + C) + b. Based on the given graph, find A, B, C and b. Write the function of the given graph. In this graph we are given the minimum value and the maximum value of the function. How to find the amplitude from the graph? What is the relationship between the ecoefficiency of the x-term and the period of the sine function? How to find the initial phase shift? How to determine the value of b?