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 .
Natalie would have been making a mistake from the beginning because any non-zero expression raised to the power of zero is one.
So she would have been making a mistake from step one
16/5 x 100
= 320 %
Hope this makes sense
NARNIA... He is surprised to see, nothing because he never visited the stone table, I've watched the movies a thousand times and the books and it says nothing about him seeing the stone table.
