Subjects algebra

Quadratic Graph 7821Ca

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1. **State the problem:** We are given the quadratic function $$p(x) = (x - 1)^2 - 1$$ and asked to graph it. 2. **Recall the vertex form of a quadratic function:** $$p(x) = a(x - h)^2 + k$$ where \((h, k)\) is the vertex of the parabola and \(a\) determines the direction and width. 3. **Identify the vertex and direction:** Here, \(a = 1 > 0\), so the parabola opens upward. The vertex is at \((h, k) = (1, -1)\). 4. **Axis of symmetry:** The vertical line through the vertex is \(x = 1\). 5. **Plot key points:** - Vertex: \((1, -1)\) - Choose points around the vertex, e.g., \(x=0\): $$p(0) = (0 - 1)^2 - 1 = 1 - 1 = 0$$ - \(x=2\): $$p(2) = (2 - 1)^2 - 1 = 1 - 1 = 0$$ 6. **Sketch the parabola:** Plot points \((0,0)\), \((1,-1)\), \((2,0)\) and draw a smooth curve opening upward. **Final answer:** The graph of $$p(x) = (x - 1)^2 - 1$$ is a parabola with vertex at \((1, -1)\), opening upward, symmetric about \(x=1\).