Use the trigonometric function y f (x) = 4 sin (x/3) -2 to solve the following questions from 1 to 8: 1. The amplitude of the function y = f (x) is: A) A = 0 B) A =1 C) A=4 D) A = 2 C) PS = -1 D) PS = 2. The phase shift of the function y = f (x) is: A) PS = 0 T B) PS = 2 3. The period of the function y = f (x) is: A) T = B) T = 2 C) T = 3 D) T = 6 4. The equation of the axis is: A) y=1 B) y=-2 C) y = -1 D) y = 2 5. The y-intercept is: A) Y-int = -3 B) Y-int = 0 C) Y-int = -2 D) Y-int = 2 6. The x-intercept(s) in the interval 0 x2: A) X-int = B) X-int = 0 C) X-int = 3 D) X-int = 2 2 7. The solution of the equation f(x) = 2 in the interval 0 x2 is: A) x = 0 B) x = 2 C) x= 3 2 D) no solution 8. From the function y = sin(x) and the following transformations, except: A) vertical stretch by 4 C) vertical shift down by 2 B) horizontal stretch by 3 D) horizontal compression by 1/3