Find a function of the form y = A sin(kx) or y: = A cos(kx) whose graph matches the function shown below: 5 4 3 2- + 11 10 9 Phy -8 -7 -6 -5V -4 -3 -2 -1 2 3 4 6 8 9 -2 --3- -4 Leave your answer in ex