Question

What is the equation of the midline of the sinusoidal function?

Answer 1

First of all, the midline is a horizontal line. As such, it will have an equation like $y=k$, and we have to find the correct value for $k$.

To find it, we have to take the average of the y-coordinates of the min and max points.

Since the maximum is 6 and the minimum is 2, the average is

$\dfrac{2+6}{2} = 4$

Answer 2

y={2+6}/{2} = 4

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