Algebra-2

Question Analysis
This question tests the student's understanding of vertical stretches of functions. The student needs to apply the basic rule where is the stretching factor.

Key Concept Explanation
A vertical stretch multiplies the output values of the function by a constant greater than 1, which in this case is 4.

Step-by-step Solution
1. Identify the original function:
2. Apply the vertical stretch by multiplying the function by 4:

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