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McGraw Hill Glencoe Algebra 2, 2012

MH

McGraw Hill Glencoe Algebra 2, 2012 View details

8. Quadratic Inequalities

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Exercise 4 Page 285

Find the roots and use them to graph the related function.

${x ∣ x < 1 or x > 4}$

Practice makes perfect

We will start by rearranging the inequality.

0 < x^{2} - 5 x + 4 \Leftrightarrow x^{2} - 5 x + 4 > 0

Now, we are ready to sketch the related quadratic function. To do so, we first need to identify the values of

a,

b,

and

c .

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Subchapter links

Check Your Understanding p.285

Practice and Problem Solving p.286-287

H.O.T. Problems p.287

Standardized Test Practice p.288

Spiral Review p.288

Skills Review p.288