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
Feedback
Help Center


Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Systems of Linear Equations and Inequalities

Enrich Your Math Word Power



For each mathematical term, choose the correct meaning.



1

system of equations
A)a systematic method for classifying equations
B)a method for solving an equation
C)two or more equations
D)the properties of equality
2

independent linear system
A)a system with exactly one solution
B)an equation that is satisfied by every real number
C)equations that are identical
D)a system of lines
3

inconsistent system
A)a system with no solution
B)a system of inconsistent equations
C)a system that is incorrect
D)a system that we are not sure how to solve
4

dependent system
A)a system that is independent
B)a system that depends on a variable
C)a system that has no solution
D)a system for which the graphs coincide
5

substitution method
A)replacing the variables by the correct answer
B)a method of eliminating a variable by substituting one equation into the other
C)the replacement method
D)any method of solving a system
6

addition method
A)adding the same number to each side of an equation
B)adding fractions
C)eliminating a variable by adding two equations
D)the sum of a number and its additive inverse is zero
7

linear equation in three variables
A)Ax + By + Cz = D with A, B, and C not all zero
B)Ax + By = C with A and B not both zero
C)the equation of a line
D)A/x + B/y = C with A and B not both zero
8

linear inequality in two variables
A)when two lines are not equal
B)line segments that are unequal in length
C)an inequality of the form Ax + By ≥ C or with another symbol of inequality
D)an inequality of the form Ax2 + By2< C2
9

matrix
A)a television screen
B)a maze
C)a rectangular array of numbers
D)coordinates in four dimensions
10

augmented matrix
A)a matrix with a power booster
B)a matrix with no solution
C)a square matrix
D)a matrix containing the coefficients and constants of a system of equations
11

order
A)the length of a matrix
B)the number of rows and columns in a matrix
C)the highest power of a matrix
D)the lowest power of a matrix
12

sign array
A)the signs of the entries of a matrix
B)the sign of the determinant
C)the signs of the answers
D)a matrix of + and - signs used in computing a determinant
13

determinant
A)a number corresponding to a square matrix
B)a number that is determined by any matrix
C)the first entry of a matrix
D)a number that determines whether a matrix has a solution








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.