Question

How do you graph `y =3cos2x+4`?

Answer 1

It's nature is like cos x.

Explanation:

It's squeezed to half(frequency is doubled) due to 2x.
It's amplitude has tripled.
The whole graph has shifted upwards by 4 units.

graph{3cos(2x)+4 [-16.02, 16.01, -8.01, 8.01]}