Question

Consider
f(x) = cos 5x
g(x) = −4 + cos 5x
Which statement best describes the relationship between the graphs of f and g?
1. The graph of g has 4 times the amplitude
of the graph of f.
2. The graph of g has one-half the amplitude
of the graph of f.
3. The graph of g is a vertical shift downward
by 4 units of the graph of f.
4. None of these.
5. The graph of g is a vertical shift upward
by 4 units of the graph of f

Answer 1

g is a vertical shift downward of f