Ask your own question, for FREE!
Mathematics 18 Online
kaylak:

help

kaylak:

1 attachment
kaylak:

@Vocaloid

kaylak:

@Vocaloid

Vocaloid:

phase shift is -c/b (just have to memorize this) for 3) you need to figure out which function has the same -c/b value as the function in the problem

Vocaloid:

for -cos(t-pi/6) + 1 -c/b = pi/6 so select all functions where -c/b = pi/6

kaylak:

3 is d and e

kaylak:

4 is b and something else

kaylak:

either c or d a and e are wrong

Vocaloid:

3 needs to be b + e (-pi/3 divided by 1/2 is -2pi/3 not pi/6)

Vocaloid:

haven't looked at 4 yet hold on

kaylak:

how is 3 b and e ? because phrase shift of original equation is 2pi

Vocaloid:

phase shift is pi/6 you're probably thinking of the period

Vocaloid:

|dw:1518018489470:dw|

Vocaloid:

|dw:1518018497255:dw|

kaylak:

oops i am

kaylak:

is 4 b and d ?

Vocaloid:

for #4 sin(x+h) shifts everything left by h units so for -c/b to be -5 units sin(x+5) or sin(2x+10), etc. so choices 2 + 4 only

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!