Which of the following functions is represented by the graph below?

Mathematics

1 answer:

Ann [662]4 years ago

6 0

Answer:

A. y = 3 cos (1/2) x.

Step-by-step explanation:

The y-intercept is 3 so it will contain 3 cos x (because y = cos x passes through (0, 1).

The graph of 3 cos x has been stretched horizontally by a factor 2 ( 3 cos x would pass through (π/2, 0) whereas the given graph passes through (π, 0).

So the equation is 3 cos(1/2) x

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Answer:

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