until it reaches −1 again at the end of the cycle at x = 2π. The coordinates of the point where
y is a maximum are (π,1).14 . B
The following figure shows that choice (A) can occur.
Choice (B) is correct. It cannot occur.Drawing a line through the vertex of a triangle shows that choice (C) can occur. This is shown
in this figure.Choice (D) can occur when the line contains one side of the triangle. This is shown in this
figure.