Match the given function to its graph.1) y = -3 sin (3x)2) y = -3 sin (x)3) y = 3 cos (3x)4) y = 3 cos (x)AB?CD?

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A. 1C, 2A, 3B, 4D
B. 1C, 2A, 3D, 4B
C. 1D, 2B, 3A, 4C
D. 1A, 2C, 3D, 4B

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Answer: D

Mathematics

The regression line always gives an exact model for data.

Answer the following statement true (T) or false (F)

Simplify the expression.5  (q ? 0)

A.
B.
C.
D.

Sketch the graph of the function. h(x) = x³ -4x²

Find a unit vector that has the same direction as the given vector.u = -9i + 9j

A. -9i + 9j
B. - i + j
C. - i + j
D. -9i + 9j