Algebra-2

Question Analysis
This question involves finding an absolute value function with a vertex on the y-axis and a given point. The main focus is simplifying the form when and calculating a.

Key Concept Explanation
For a vertex at , the function simplifies to , where a controls stretch and direction (positive = upward here).

Step-by-Step Solution
Vertex (0, -4) → , : .
Substitute (-3, 2): →

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