Step-by-step explanation:
To graph the function, let's find the values of f(x) for some values of x.
If x = 0
f(x) = cos(2x) + 1
f(0) = cos(2(0)) + 1
f(0) = cos(0) + 1
f(0) = 1 + 1 = 2
If x = π/2
f(π/2) = cos(2(π/2)) + 1
f(π/2) = cos(π) + 1
f(π/2) = -1 + 1 = 0
If x = π
f(π) = cos(2π) + 1
f(π) = 1 + 1
f(π) = 2
Answer:
So, using the points (0, 2), (π/2, 0) and (π, 2), and following the form of a cosine function, we get that the graph is