What function best represents a sine function with an amplitude of 4, a period of pi over 6, and a midline at y = −2?

Let us suppose the sine function is in the form

We have been given that the amplitude is 4. It means we have

Now, period is given by

Thus, we have

Now, we have been given that the mid line is. Hence, we have

Therefore, the sine function is given by

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

because they could drop even lower..