Step 1: Find the maximum and minimum values. Step 2: Identify one cycle of the cosine function on the graph to form the model function. Step 3: Find the amplitude and period. Show your formula and work for credit. Step 4: Use the period to determine b. Show your formula and work for credit. Step 5: Identify the vertical shift, d. Show your formula and work for credit. Step 6: Use the graph to identify the phase shift. Step 7: Use phase shift and b to determine c. (phase shift = -c/b) Show your formula and work for credit. FUNCTION: _________________________________
