2-1 Using Variable

Question 1

Additive inverse

Answer 1

the opposite of a number is a

Question 2

Matrix

Answer 2

is a rectangular arrangement of numbers in rows or columns

Question 3

Elements

Answer 3

Each item in a matrix is an…

Question 4

identity property of addition

Answer 4

For every real number n, n + 0 = n and 0 + n = n

Question 5

inverse property of addition

Answer 5

for every real number n, there is an additive inverse -n such as n + (-n) = 0