We have been given that a cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 11, the vertical shift is 9 units down, and the period of the function is 
. The graph of the function does not show a phase shift. We are asked to write the equation of our function.
We know that general form a cosine function is 
, where,
A = Amplitude,
= Period,
c = Horizontal shift,
d = Vertical shift.
The equation of parent cosine function is 
. Since function is reflected about x-axis, so our function will be 
.
Let us find the value of b.
Upon substituting our given values in general cosine function, we will get:
Therefore, our required function would be .
Answer:
Heya mate....
Step-by-step explanation:
This is ur answer.....
<h2>LCM of 4 and 20 is 20.</h2>
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Answer:
27,000 is the answer
Step-by-step explanation:
Dot plot because a small number of scores are reported individually
The lower quartile is 60. Quartiles are the numbers in the middle of the median and lowest/highest number.
