Question

Help I don't know how to find the maximum value of this equation y=-3+4cos(5pi/6(x+4))

Answer 1

what is the range of the cosine function?

Answer 2

It doesn't say

Answer 3

..... what class are you taking?

Answer 4

Precal

Answer 5

then it does say .... youve already covered it in your material.

Answer 6

cos(x) has a range of outputs form ______ to ______

Answer 7

do you mean like pi-2pi sort of thing

Answer 8

hmm, kinda but its not the domain of inputs we are looking for, its the results of them

all of the outputs from cos(x) fall between 2 values.

Answer 9

test it out

what is:

cos(0)
cos(pi/2)
cos(pi)
cos(3pi/2)
cos(2pi)

Answer 10

so something kinda like this?