Question 976407
The phase angle for the sine curve y = a sin(bx + c) is usually taken to be the value of c and the phase shift is given by −​b​​c​​.
We are given,
y = 3 + 4 sin (3x - 0.5) 
therefore
phase angle is -0.5
phase shift is -3 * (-0.5) = 1.5