Y= 2 sin θ Y= 3 cos θ
Y= sin 20
Y= 3 cos2t
Y= 4 sin(3t-2)
Y= 4 cos(θ+2)
Y= 4 sin(3t-2)+3cos2t
Y= 2cos 3x-3 sin (2x+1)
Y= 6cos 3x/4 +2sin x/2
Y= 9sin (2θ/3-1) -14cos (30/2+1)

Two lines parallel to a third line are parallel to each other. always sometimes or never

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?