Question

The domain of f(x) = cos(x) is all real numbers.
A. true
B. false

Answer 1

@jim_thompson5910

Answer 2

http://fooplot.com/#W3sidHlwZSI6MCwiZXEiOiJjb3MoeCkiLCJjb2xvciI6IiNEMTFFMUUifSx7InR5cGUiOjEwMDB9XQ--

what do you think?

Answer 3

true

Answer 4

domain is the numbers running over the x-axis
whilst the y-axis is constrained to up 1 and down to -1

the x-axis values go on and on and on
thus yes, true

Answer 5

Thank you

Answer 6

@jdoe0001
"domain is the numbers running over the x-axis
whilst the y-axis is constrained to up 1 and down to -1

the x-axis values go on and on and on
thus yes, true"

But isn't f(x) plotted on the y axis??