Quadratic Functions, Equations and Inequalities

Quadratic Functions, Equations and Inequalities

IP 3

For \(y=x^2-4x-5\), find:

  1. the completed-square form,

  2. the turning point and axis of symmetry,

  3. the intercepts.

Use these features to sketch the graph.

Solution:

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Answer:(a) \((x-2)^2-9\); (b) Vertex \((2,-9)\); axis \(x=2\); (c) Intercepts \((-1,0),(5,0),(0,-5)\)

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