How do you graph # y=4cos(2x+1)#?

1 Answer
Nov 13, 2017


The amplitude is 4. The period is #pi#, it's shifted left 1 unit.


The leading scalar is the amplitude.

The period is found by #{2pi}/B#. In this case your B value is 2.

The phase shift is the +1, which reverses, so you start the graph one unit to the left.