How do you use the amplitude and period to graph #y = -cos ( x- pi/4)#?

1 Answer
Bdub
Mar 2, 2016

#A=1, B=1,C=0->y=0,D=pi/4, P=(2pi)/B=2pi# Increments: #P/4=(2pi)/4=pi/2#

Explanation:

Start from the sinusoidal axis y=C which happens to be the x-axis here since sinusoidal equation is y=0. From y=0 go up one unit to y=1 and draw the upper bound then go down one unit and draw the lower bound. Your graph will start on the x-axis from #pi/4# and add #pi/2#each time to get to the next mark. Remember that you only need five points to graph one cycle of the sinusoidal equation.

Related questions
See all questions in Translating Sine and Cosine Functions
Impact of this question
1670 views around the world
You can reuse this answer
Creative Commons License