Please help me with these problems.

Review Preview A(1 131, 5) Above is a graph of a periodic function and the line y = 5. One of the intersection points is ( 1 1.31, 5). a. What is the period of the function? b. Use the symmetry of the graph to find the coordinate of the intersection labeled as point B. C. What is the coordinate for the point labeled C? 6-85. Consider the equation y = 10sin(5 (x-5)) +24. Find the amplitude, period, and shifts for the function. b. Make a sketch of the graph using the information from part (a). You may find the 5-point method helpful. 6-86. Now consider the equation 10 sin(5 (x-5))+24=20. a. Solve the equation for the smallest positive value of x (in radians). If you are having a problem getting started, let u = (x -5). Be sure to choose the correct value of x. b. Add y = 20 to your graph. Use the symmetry of your graph to find the next positive value of where 10sin(# (x -5)) + 24 =20. C. Check your results by graphing y = 10sin((x -5)) + 24 and y = 20 on your graphing calculator