Question

Graph the function. 4cos(3theta-3/4 pi)+4. Amplitude=4
Period=2/3 pi
Phase Shift=-1/4 pi
Vertical Shift=4

I'm just having trouble graphing it, if you could help me .. It'd be great!! Thank you (:

Answer 1

hey babycakes ;)

anyway, numbers look good
for graphing you need a starting point and then 4 more key points to identify zeros and max/min
-its shift to right pi/4, up 4 --> start at (pi/4,8)
-period is 2pi/3, divide that by 4 = pi/6 (these are increments to each key point)
(pi/4 + pi/6 , 4)
(pi/4 + 2pi/6 , 0)
(pi/4 + 3pi/6 , 4)
(pi/4 + 4pi/6 , 8)

plot those points and you are done