Chapter 2

Question 0

Constant

Answer 0

A fixed number

Question 1

2.1

Variable

Answer 1

Symbol used to represent every element in a set of numbers

Question 2

Algebraic equation

Answer 2

Equation containing numbers, variables, and operational signs

Question 3

Domain

Answer 3

Possible values for X

Question 4

2.2

Evaluating an expression

Answer 4

1) sub the values in for variables

2) do PEMDAS

Question 5

formula

Answer 5

Equation that expresses relation between related quantity

Question 6

2.3

What is the distributive property?

Answer 6

Example:

A(B+C)=ab+ac

Question 7

Term

Answer 7

Constant variable raised to a power

Question 8

Like terms

Answer 8

Terms that have the same variable(s) with corresponding variables showing the same exponents

Question 9

Numerical coefficient

Answer 9

Constant accompanying the variables

Question 10

2.4

Equation

Answer 10

Math sentence stating two expressions are equal

Question 11

Symmetric property of equality

Answer 11

If a=b, than b=a

Question 12

2.5
Solving word problems
Step 1

Answer 12

Read the problem, looking for operational verbs

Question 13

Step 2

Answer 13

Plan a method of attack. Make a table for relevant info

Question 14

Step 3

Answer 14

Solve the equation

Question 15

Step 4

Answer 15

Check the solution

Question 16

Supplementary angles

Answer 16

Angles that add up to 180*

Question 17

Complementary angles

Answer 17

Angles that add up to 90*

Question 18

2.6
How to express a repeating decimal
Step 1

Answer 18

Write equation in which X is equal to the repeating decimal

Question 19

Step 2

Answer 19

Multiply both sides by 100

Question 20

Step 3

Answer 20

Subtract original equation formed by multiplication

Question 21

Step 4

Answer 21

Undo multiplication and division done to variable

Question 22

Arithmetic sequences definition

Answer 22

Any 2 successive terms that have a common difference