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Expressions
Equations
Inequalities
Inequality Graphs
Vocabulary
100
Lisa had $100. She then bought $40 worth of groceries. Write an expression to represent how much money Lisa has.
100 - 40
100
Determine if x = 7 is a solution to the equation (explain your thinking or show your work). 2x + 5 = 20
No. If 2(7) + 5 = 19 not 20.
100
Solve x - 7 < 8
x < 15
100

If the solution to an inequality is x>3, will the graph indicate an open or closed circle?

Open

100
What are used to show which operations in an expression should be done first?
Parentheses
200
Evaluate the expression 4 x 2 + (8-6) - 9
1
200
Solve the solution 8+y = 29 and check your solution. Solve the equation x/4 = 12 and check your solution.
y=21
200
Solve 104 > 8x and graph the solution set.
13 > x
200

Solve the inequality. Which direction the graph will point (right or left)?

3x>-15

Right

200
Name the four symbols that represent an inequality.
Ms. Taylor will write them on the board.
300
Evaluate (20 / f )(v) for f = 5 and v = 13.
52
300
Solve the equation x/4 = 12 and check your solution.
x=48
300
There are no more than twelve correct answers to the question.
Answer must be written on board.
300

Solve the inequality below. Will the graph point to the right or left?

x/2 - 10 >= -12

Right

300
What is a number sentence that says two expressions do not have the same value?
Inequality
400
Evaluate (3g + r)(y) for g = 5, r = 2 and y = 11.
37
400
Solve the equation and check your solution: 18.9 = x - 8.3
x = 27.2
400
y/9 < 1/3 1) Solve the inequality. 2) Give 3 solutions that make the inequality true.
1) y < 3 2) (answers will vary) y=2,1,-4
400

Solve the inequality below.

-x/3 -8 > -13

Is the point on the graph open or closed?  AND In which direction will the arrow point?

Open, Left

400
What is a mathematical sentence with an equal sign?
Equation
500
Sarah charges $8.00 an hour to babysit. 1) Write an expression for describing her earnings. 2) How much will she earn if she babysits for 4 hours? 3) How long will it take her to earn 48 dollars?
1) 8h or 8xh or 8(h) 2) 8(4) = $32 3) 8h = 48 8h/8 = 48/8 h = 6 hours
500
How many boxes of envelopes can you buy with $12 if one box costs $3? 1) Write an algebraic equation to represent the problem. 2) Find the solution.
1) 3b = 12 (e represents the number of boxes of envelopes) 2) b = 4 boxes
500
Write an inequality for the following situation: The difference between Sadie's candy pile of 65 pieces and Daniel's candy pile is more than 20 pieces of candy.
65 - d > 20
500

Describe the graph of the following inequality.

-4x + 15 >= 23



Open dot on -2 and arrow to the left.

500
Write the sign that means "not equal to".
Miss Taylor will write it on the board.