I’m having trouble comprehending how to apply phase shift in graphing sinusoids functions. Im currently on the ‘Graphing sinusoidal functions: Phase shift’ area on Khan Academy. Could anyone please teach me how to do it?
#need help with sinusoidal functions phase shift
brisk notch
zealous nightBOT
cobalt jetty
a is amplitude, a = hight altitude - lower altitude, a = 6 - 2 = 4
d is the center
d = 4 or d = (6+2)/2 = 4
brisk notch
I know that, I'm just confused about the phase shift part
twin mountain
im here if you still need help
brisk notch
Yes, I do
I don’t know how to do the phase shift part
I know how to find the rest though
twin mountain
I don’t know how to do the phase shift part
whats confusing about it? like understanding which side it shifts to or putting in back in the equation?
twin mountain
okay so basically you need to know what type of wave it is first... it says its a cosine wave so you need to know what an ordinary cosine wave looks like then see how much of a shift is present in the points
looking at the maximum point and seeing how much its shifted it what i usually do
*** as the cosine waves max is on the y-axis seeing how much it is to the left or right
then putting it back into the equation either + or - depending on if its going to the left or to the right respectively
twin mountain
its fine take your time
also this should help if you still need help
its a long video i know, but its really in detail and i think it'll help a lot
brisk notch
Alright thanks I will check it out
brisk notch
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Still pretty confused sorry
I tried a new question
I think I understand how to do it now but it’s purely memorization.
twin mountain
yeah thats the jist of it