Quadratic Functions, Equations and Inequalities

Quadratic Functions, Equations and Inequalities

Secondary 3

For the curve \[y=x^2-4x+7\] and the horizontal line \(y=k\), find the values of \(k\) giving:

  1. two intersection points;

  2. one intersection point;

  3. no intersection.

Solution:

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Answer:(a) \(k>3\); (b) \(k=3\); (c) \(k<3\).

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