Lesson 3.6: Quadratic Inequalities Answers

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

Select the intervals that must be tested.

The solution set for the quadratic inequality is:

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

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

The inequality –x2 – 6 < 0 has ✔ 0 critical points1 critical point2 critical points.

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

Which graph shows y < x2 + 1?

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.

Mario has a business selling muffins. Let x be the price of a muffin. Then, the profit P for Mario’s business is given byChoose the inequality that shows the business will make a positive profit.