Problem 59 of 7
Graph the quadratic function y=1/2(x+1)^2-2 from vertex form. State the vertex, axis, opening, and two symmetric points.
Hints
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plot vertex, axis of symmetry, and symmetric points.
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Function must be in vertex form y=a(x-h)^2+k.
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Solution
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1. Read vertex (h,k) from y=a(x-h)^2+k.
2. Use sign of a for opening direction.
3. Choose equal x-distances from the vertex to make symmetric points.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Sign errors in h from (x-h).