McGraw-Hill OnlineMcGraw-Hill Higher EducationLearning Center
Student Center | Instructor Center | Information Center | Home
Course Success
Math on the Web
How's Your Math?
Graphing Calculator Workshop
Midtext Diagnostic Review
NetTutor
SMART CD Grade Book Register
Glossary
Elementary Algebra Review
Learning Objectives
Chapter Outline
Key Terms
Internet Exercises
Enrich Your Math Word Power
Pre-Test
Post-Test
Chapter Overview
Warm-Ups
Section Text
Audio/Video Tutorial Practice
Practice Test
Feedback
Help Center


Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Systems of Linear Equations and Inequalities
Graphing Linear Inequalities in Two Variables

Warm-Ups



1

The point (-1, 4) satisfies the inequality y > 3x + 1.
A)TRUE
B)FALSE
2

The point (2, -3) satisfies the inequality 3x - 2y ≥ 12.
A)TRUE
B)FALSE
3

The graph of the inequality y > x + 9 is the region above the line y = x + 9.
A)TRUE
B)FALSE
4

The graph of the inequality x < y + 2 is the region below the line x = y + 2.
A)TRUE
B)FALSE
5

The graph of x = 3 is a single point on the x-axis.
A)TRUE
B)FALSE
6

The graph of y ≤ 5 is the region below the horizontal line y = 5.
A)TRUE
B)FALSE
7

The graph of x < 3 is the region to the left of the vertical line x = 3.
A)TRUE
B)FALSE
8

In graphing the inequality y ≥ x we use a dashed boundary line.
A)TRUE
B)FALSE
9

The point (0, 0) is on the graph of the inequality y ≥ x.
A)TRUE
B)FALSE
10

The point (0, 0) lies above the line y = 2x + 1.
A)TRUE
B)FALSE








Copyright2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.