Can someone help me with this please and explain possibly? Now I know that in dilation, if the scale factor is over one it's an
enlargement but if it's under like a fraction it's a reduction, but in this situation I don't get it :/
2 answers:
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Given:
There are given that the parent functions as a cosine function:
Where,
The amplitude of the function is 9.
The vertical shift is 11 units down.
Explanation:
To find the cosine function, we need to see the standard form of the cosine function:
Where,
a is the amplitude of the function,
Now,
According to the question:
The amplitude of the function is 9, which means:
The vertical shift is 11 units down, which means:
For period:
Final answer:
Hence, the cosine function is shown below;