Geometry
# Graphs of Trigonometric Functions

If the graph in red is \( y = 3\sin(x) \), what could the graph in blue be?

What's the minimum possible value of \( y \) for

\[ y = -5 \sin(2x - \pi) - 2 ? \]

The \( \arccos \) function is typically defined by taking the inverse of a cosine with a domain of \( [0, \pi) \). What would be the effect if the inverse was of a cosine with a domain of \( [0, 2\pi) \) instead? (The graphs below may help.)

Graph of \( f(x) = \cos(x) \):

Graph of \( f(x) = \arccos(x) \):

The interval depicted is 0 to \(4 \pi \). Which of these could **not** represent the graph above?

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