Quadratic Inequalities

Question 1

Select the values that are solutions to the inequality x2 + 3x – 4 > 0.

Revolt · Accepted Answer

–6; 5

Question 2

Solve x2 – 8x + 15 < 0.Select the critical points for the inequality shown.

Revolt · Accepted Answer

3; 5

Question 3

Select the intervals that must be tested.

Revolt · Accepted Answer

x < 3; 3 < x < 5; x > 5

Question 4

The solution set for the quadratic inequality is:

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-03-03-10-05-task/mc001-4.jpg

Question 5

Select all of the other ways that the solution can be represented.

Revolt · Accepted Answer

{x | 3 < x < 5}; Answer image: //media.edgenuity.com/EVresources/3111-03-03-10-05-task/mr002-1.jpg

Question 6

What is the solution set of –x2 – 6 < 0?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-03-03-10-07-task/mc001-2.jpg

Question 7

Select all of the ordered pairs that make the inequality y > x2 + 3x – 4 true.

Revolt · Accepted Answer

(0, 0); (–2, –1)

Question 8

Which graph shows y < x2 + 1?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/3111-03-03-10-12-task/mc001-3.jpg

Question 9

Look at the factorization shown below.0 < –100x2 + 350x – 1500 < –50(2x2 – 7x + 3)0 < –50(2x – 1)(x – 3)Select the range that Mario can choose from to price his muffins and make a positive profit.

Revolt · Accepted Answer

$0.50 < x < $3.00

Quadratic Inequalities Answers

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