Question

midline from a trig graph (sin/cos)
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question
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determine the equation of the midline of the following graph.
answer attempt 1 out of 2
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Explanation:

Step1: Identify max and min y-values

The graph oscillates between $y = 4$ (max) and $y = -4$ (min).

Step2: Calculate midline

Midline is the average of max and min: $\frac{4 + (-4)}{2} = 0$. So the midline equation is $y = 0$.

Answer:

$y = 0$