Algebra-2

Question Analysis
This question involves identifying the midline (horizontal center) of the parent sine function. The main focus is on recognizing the horizontal line that divides the function’s oscillating graph evenly between its maximum and minimum values, with no transformations.

Key Concept Explanation
The midline of a periodic function is the horizontal line halfway between the function’s maximum and minimum values.

Step-by-step Solution
1. Recall the maximum and minimum values of : Maximum = 1, Minimum = -1.
2. Calculate the midpoint between the maximum and minimum: Midline y-value =

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