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Consider the Quadratic Function \( y=(x-2)^{2}-4 \) N.B. Give all coordinates as ordered pairs. a. Coordinates of vertex: b. Coordinates of y-intercept: c. Domain: d. Range: e. Equation of Axis of Symmetry:

Ask by Chang Williams. in the United States
Mar 16,2025

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**a. Vertex:** (2, -4) **b. Y-intercept:** (0, 0) **c. Domain:** All real numbers **d. Range:** \( y \geq -4 \) **e. Axis of Symmetry:** \( x = 2 \)

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The vertex of the quadratic function \( y=(x-2)^{2}-4 \) is at the point where the expression inside the square is minimized. The vertex is \( (2, -4) \). To find the y-intercept, set \( x = 0 \): \[ y = (0-2)^{2}-4 = 4 - 4 = 0 \] So, the coordinates of the y-intercept are \( (0, 0) \). The domain of this quadratic function is all real numbers since there are no restrictions on \( x \): Domain: \( (-\infty, \infty) \). For the range, since the vertex is the minimum point and it opens upwards, the range starts from the y-coordinate of the vertex: Range: \( [-4, \infty) \). The equation of the axis of symmetry can be found from the x-coordinate of the vertex: Axis of Symmetry: \( x = 2 \).

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