Answer:

Step-by-step explanation:
We are asked to find the equation of mid-line of the given sinusoidal function.
Since the mid-line of a sinusoidal function is the line that runs between the maximum and minimum y-values of the function. We can consider it the middle y-value.

We can see from our given graph that the maximum value of our function is 5 and minimum value of our function is -5.
Upon substituting these values in mid-line formula we will get,

Therefore, the equation of the mid-line of the given sinusoidal function is
.
Answer:
D
Step-by-step explanation:
i upload the image sorry i don't know how to explain i just search it
Answer:
x > 2
Step-by-step explanation:
-2x > -4 you get this by subtracting 8 from the left side and in turn subtracting 8 from the other side
x > 2 you get this by dividing -2 from both sides