Chapter 2 Terms

Question 1

If A is a number then -(-A) is =

Answer 1

A

Question 2

IMPORTANT: When Subtracting 2 Numbers. If A, and B are numbers, then a +(-b) =

Answer 2

a - b.

Question 3

Inequality

Answer 3

A statement between two quantities usually separated by a sign of inequality. Signifying less than, greater than, or not equal to.

Question 4

What does it mean to say the sum of a number and its opposite is 0?

Answer 4

If A Is a number, then A +(-A) = 0 -A + A = 0

Question 5

ADDING two integers with DIFFERENT signs

Answer 5

Subtract the smaller absolute value from the Larger absolute value. Use the Sign of the number w/ the largest Absolute value for the answer.

Question 6

The Product of an ODD number of _______ is an negative result but, an EVEN number of _________ is a positive number.

Answer 6

Negatives (-) / Negatives (-)

Question 7

Integers

Answer 7

A whole number (Positive or Negative) -1,0,1

Question 8

Additive Inverse

Answer 8

The additive inverse of a number is the opposite of that number, that is, the additive inverse of a number x is -x. The sum of a number and its additive inverse is always zero, that is, x + (-x) = 0.

Question 9

Absolute value

Answer 9

The magnitude of a number regardless of its sign. Hence, the absolute value of a number “X” is always positive or zero. It is written as |x|. When the number “X” is represented on a number line, its absolute value is the distance from the origin (zero) to that number. -l-x l = x |-x| = x -|x| = -x |0| = 0

Question 10

ADDING Integers with the a SAME signs

Answer 10

Add Their two absolute Values& Use their common sign.

Question 11

Is 0 a Positive or Negative Number

Answer 11

Neither

Question 12

A way of grouping nnumbers into categories based on their structure

Answer 12

Number Classifications

Question 13

non-negative counting numbers 1, 2, 3, 4, … . Some exclude 0 (zero) from the set

Answer 13

Natural Numbers

Question 14

Both Positive and negativeNatural Numbers(Whole Numbers) -4, -3, -2, -1, 0, 1, 2, 3, 4,

Answer 14

Integers

Question 15

Integers that include both fractions and decimals The ratio or quotient of an integer and another NON-ZERO integer -100, -20¼, -1.5, 0, 1, 1.5, 1½ 2¾, 1.75

Answer 15

Rational Number

Question 16

Numbers that dont include fractions, or integers and can have a decimal value that continues forever WITHOUT a pattern these are numbers which cannot be represented as fractions. √2, √3, 3.141592653…(π) (non rational)

Answer 16

Irrational numbers

Question 17

Both Rational and Irrational numbers.Every Number on the number line -100, -20¼, -1.5, 0, 1, 1.5, 1½ 2¾, 1.75,√2, √3,3.141592653…(π)

Answer 17

Real Numbers

Question 18

A number which square is a negative real number. -5i, 3i, 7.5i

Answer 18

Imaginary Number

Question 19

The Combonation of both Real and Imaginary numbers. 7 + 2i

Answer 19

Complex Numbers

Question 20

Natral Numbers & 0 0,1, 2, 3, 4, …

Answer 20

Whole Numbers