Solving Quadratic Inequalities Day 2

​Solve Quadratic Inequalities by Graphing

​Solve Quadratic Inequalities by Graphing

Multiple Choice

Solve the quadratic inequality:

$$x^2-14x+48>0$$  

• $$x<6\ ,\ \ x>8$$  

• $$6<x<8$$  

• $$-8<x<-6$$  

• $$x<-8\ ,\ \ x>-6$$  

Multiple Choice

Solve the quadratic inequality:

$$x^2-13x+22\le0$$  

• $$x\le-11\ ,\ \ x\ge-2$$  

• $$-11\le x\le-2$$  

• $$2\le x\le11$$  

• $$x\ge11\ ,\ \ x\le2$$  

Multiple Choice

Solve the quadratic inequality:

$$x^2+9x+18<0$$  

• $$x<-6\ ,\ \ x>-3$$  

• $$-6<x<-3$$  

• $$x<3\ ,\ \ x>6$$  

• $$3<x<6$$  

Multiple Choice

Solve the quadratic inequality:

$$x^2-4x-5\le0$$  

• $$-1\le x\le5$$  

• $$-5\le x\le1$$  

• $$x\ge5\ ,\ \ x\le-1$$  

• $$x\le-5\ ,\ \ \ x\ge1$$  

Multiple Choice

Solve the quadratic inequality:

$$x^2+3x-28\ge0$$  

• $$x\ge4\ ,\ \ x\le-7$$  

• $$x\ge7\ ,\ \ x\le-4$$  

• $$-4\le x\le7$$  

• $$-7\le x\le4$$  

Multiple Choice

Level 1

Write an inequality for the statement:

You must be at least 48 inches tall to ride the bumper cars.

• h < 48

• h > 48

• h ≤ 48

• h ≥ 48

Multiple Choice

Which of the following is the solution of the given Quadratic Inequality?

• 5 < y < 12

• 7 < y < 10

• 8 < y < 9

• 6 < y < 11

Multiple Choice

Which of the following is the solution of the given Quadratic Inequality?

• x < -5 or x > -4

• x > -5 or x < -4

• x < 5 or x > 4

• x > 5 or x < 4

Multiple Choice

Does the sign need to flip when solving?
8y < (-40)

• YES
• NO

Multiple Choice

The room can hold a maximum of 400 people. If there are already 134 people there, how many more can come? Identify the inequality that represents this situation.

• x - 134 < 400

• x + 134 < 400

• x - 134 ≤ 400

• x + 134 ≤ 400