Equations and Inequalities

Question 1

Compound inequalities

Answer 1

Inequalities joined by AND or OR. (ex. 5

Question 2

Constant

Answer 2

Term with no variable factor. (ex. 3)

Question 3

Equivalent equations

Answer 3

Algebraic expressions that have the same value for all values of the variables. (ex. 3a + 2a = 5a)

Question 4

Equivalent inequalities

Answer 4

Inequalities with the same set of solutions. (ex. x + 4

Question 5

Union

Answer 5

Set that contains all of the elements of two or more sets. (ex. A = {3,7} B = {1,2,5} A U B = {1,2,3,5,7})

Question 6

Intersection

Answer 6

Set of data laments that are common to two or more sets. (ex. A = {1,2,4} B = {2,4,6} A n B = {2,4})

Question 7

Natural numbers

Answer 7

No negatives, no decimals, no fractions, no zero - 1, 2, 3…

Question 8

Whole numbers

Answer 8

No decimals, no fractions, no negatives - 0, 1, 2, 3…

Question 9

Integers

Answer 9

No fractions, no decimals - -3, -2, -1, 0, 1…

Question 10

Rational numbers

Answer 10

The ratio of two integers, decimals that terminate - 2/1, -1,5, 0.33, 5/7

Question 11

Irrational numbers

Answer 11

Decimals that never terminate and never repeat, roots that don’t simplify - 3,14159…, square root of 2, 5 and 7…

Question 12

Coefficient

Answer 12

Numerical factor with a variable (ex. 3y)