## How do you find a sinusoidal phase shift?

A * sin(Bx – C) + D = A * sin(B * (x – C/B)) + D , which is a phase shift of C/B (to the right) of the function A * sin(Bx) . Of course, we can repeat the above for the cosine as well. To sum it all up, in order to calculate the phase shift of a phase shift equation, you need to find C/B .

## How can sinusoidal functions affect phase shift?

The constant c controls the phase shift. Phase shift is the horizontal shift left or right for periodic functions. If c=π2 then the sine wave is shifted left by π2. If c=−3 then the sine wave is shifted right by 3.

Does sin have a phase shift?

The phase shift of a sine curve is how much the curve shifts from zero. If the phase shift is zero, the curve starts at the origin, but it can move left or right depending on the phase shift. A negative phase shift indicates a movement to the right, and a positive phase shift indicates movement to the left.

What affects phase shift?

phase shift can be affected by both shifting right/left and horizontal stretch/shrink. Phase shift is positive (for a shift to the right) or negative (for a shift to the left). The easiest way to find phase shift is to determine the new ‘starting point’ for the curve.

### How do you know if a phase shift is positive or negative?

If b>0 , the phase shift is negative. If b<0 , the phase shift is positive. For this argument type, the horizontal stretch/shrink is applied first; this doesn’t move the original curve’s starting point. Then, the curve is shifted right/left.

### What is phase shift in trigonometry?

When we move our sine or cosine function left or right along the x-axis, we are creating a Horizontal Shift or Horizontal Translation. In trigonometry, this Horizontal shift is most commonly referred to as the Phase Shift. As Khan Academy states, a phase shift is any change that occurs in the phase of one quantity.

What is the phase shift of a wave?

Phase shift is a small difference between two waves; in math and electronics, it is a delay between two waves that have the same period or frequency. Typically, phase shift is expressed in terms of angle, which can be measured in degrees or radians, and the angle can be positive or negative.