Math Help Forum - View Single Post

Atav20 · #6 December 1st, 2008, 06:36 PM

Quote:

Originally Posted by skeeter

your solutions are correct

for $y = A\cos[B(x+C)] + D$

$|A|$ is the amplitude

$\frac{2\pi}{|B|}$ is the period

$C$ is the phase shift ... (+) left , (-) right

$D$ is the vertical shift ... (+) up, (-) down

btw ... for future reference, the Greek letter $\pi$ is spelled "pi".

this is a piece of "pie".

Why is the phase shift -pi/15 and not pi/3 for the first problem