Question

Find the trigonometric function for the graph?

Answer 1

you will need 3 things,
Amplitude
Period
Phase shift
which of these could you not find ?

Answer 2

what is the period and amplitude and midline first?

Answer 3

midline is trivial...

Answer 4

I don't know any. Is it possible for the amplitude to be negative? my first guess was amp: -1 but would that be -cos or cos^-1 or is that even right? WHO KNOWS, I'm just over my head in this department

Answer 5

no, its the absolute value.

Answer 6

but if you said amplitude of -2 we would just assume you mean 2, they are the same thing...sort of

Answer 7

ok so F(x) = cos
got that much then :)