Question

The parent cosine function is transformed to create the function . which graphed function has the same amplitude as function m?

Answer 1

Based on the graph given, the option that will show the same amplitude as function m is graph D.

Which graphed function  is this about?

The cosine function is seen as:

f(x) = A*cos(kx) + M

And the functions are:

• A stands for amplitude,
• k is angular frequency,
• M is the midline.

When the function is m(x) = -2*cos(x+π).

The absolute value of the amplitude will be 2*|-2| = 4

Therefore, the option that can have the requirement above is graph D.

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