How does the function \( f(x)=\frac{1}{2}(x+2)^{2}-3 \) compare to the parent function? Facing down since a is less than 1 with a vertex at \( (2,-3) \) Facing up since a is greater than 1 with a vertex as \( (2,-3) \). Stretched since a is less than 1 with a vertex at \( (-2,-3) \). Compressed since a is less than one with a vertex at \( (-2,-3) \)
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Beyond the Answer
The function \( f(x) = \frac{1}{2}(x + 2)^2 - 3 \) is a transformation of the parent function \( f(x) = x^2 \). Firstly, the coefficient \( \frac{1}{2} \) means that the graph is compressed vertically compared to the parent function, making it "wider." The term \( (x + 2)^2 \) indicates a horizontal shift 2 units to the left, while the \(-3\) results in a downward shift by 3 units. Therefore, the vertex of this parabola is at \( (-2, -3) \). In real-world applications, understanding the transformations of quadratic functions can be crucial in fields like physics when modeling projectile motion. For instance, the vertex can represent the maximum height a projectile reaches before it starts to fall, and the changing parameters help us design scenarios like launching angles and initial speeds for desired trajectories.
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