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:
2/1/5/6/7/9
Step-by-step explanation:
1.2
2.1
3.5
4.6
5.7
6.9
Y=3x-14 or 3x-14=Y
This is because you want to keep y positive, and so you add Y on both sides and get 3x=14+y, then you want to get y alone so you subtract 14 on both sides and get 3x-14=Y
To be a function, for any X value( input) you can only have one Y(output value).
In A) there are two x values of 2, but each one has a different Y value, so this cannot be a function.
In C, there are two x values of 1, each with a different Y value, so also cannot be a function.
D) has two X values of 0, and each has a different Y value so cannot be a function.
The correct answer would be B.
Answer:
final score to be 25
because each question has 4possible answers and each question has only one correct answer.
thank you
Step-by-step explanation:
hope my answer is helpful to you
