Expressions, Equations, and Inequalities

Expressions

100

Evaluate 5t + 9 for t = 7

44

200

Evaluate 4 (n + 2 ) for n = 3

20

300

Evaluate (20 / f ) * v for f = 5 and v = 13

52

400

Evaluate 3g + r - y for g = 5, r = 2 and y = 11

6

500

Evaluate 2 + 4x - z for x = 5 and z = 9

13

Vocab

100

_________ is the number before the variable that tells us to multiply.

Coefficient

200

___________ is the unknown number that is represented as a letter.

Variable

300

_________ is the number that does not change and is by itself.

Constant

400

_______ is a part of the expression or equation separated by + and -.

Term

500

An ____________ is a combination of variables, numbers and operations that DOES have an equal (=) sign.

Equation

Inequalities - A

100

≤ or ≥ has this type of circle on the number line when graphing.

Closed circle

200

< or > has this type of circle on the number line when graphing.

Open

300

True or False.

7 + x ≤ 20 

x = 5

True

400

True or False.

6x ≥ 35

False.

500

True or False.

3x + z < 20

x = 4 and z = 3

True

Inequalities - B

100

Graph x > 7

Open Circle, to the right 

200

Graph x ≤ 10

Closed circle, to the left

300

Graph x ≥ -4

Closed circle, to the right 

400

Graph 6 > x 

Open circle, to the left

500

Graph 4 ≤ x

Closed circle to the right