graphs of sin and cos
i dont understand what a phase shift is, i know it can be defined through the equation by -c/b but how is it represented ON the graph?
posted by Anonymous at 9:22 PM
Blog for students in Mr. Karafiol's Period 4 Precalculus BC class to talk about math, learning math, etc.
posted by Anonymous at 9:22 PM
3 Comments:
The phase shift is the horizontal translation. The equation f(x)=sin(x+1) would be sin(x) translated one to the left.
Phase shift is a simple horizontal translation an easy way to see if a phase shift is present is to look at the y-axis. The y-intercept of a sin graph is 0 an it is 1 for cos. If the y-value is not 0 or 1, depending on the graph, then you can presume that their is a phase shift.
Just make sure when calculating the phase shift that you factor out whatever "b" is if it isn't already done for you.
Post a Comment
<< Home