
Understanding Inequalities and Interval Notation
Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Emma Peterson
FREE Resource
Standards-aligned
Read more
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must you remember to do when multiplying or dividing both sides of an inequality by a negative number?
Add the same number to both sides
Reverse the inequality symbol
Multiply both sides by zero
Subtract the same number from both sides
Tags
CCSS.6.EE.B.8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the inequality 7x < 21?
Subtract 7 from both sides
Add 7 to both sides
Add 2x to both sides
Divide both sides by 7
Tags
CCSS.6.EE.B.8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After solving 7x < 21, what is the value of x?
x < 3
x > 3
x = 3
x ≥ 3
Tags
CCSS.6.EE.B.8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the solution x < 3 represented on a number line?
A closed point at 3 with a line to the right
An open point at 3 with a line to the left
A closed point at 3 with a line to the left
An open point at 3 with a line to the right
Tags
CCSS.6.EE.B.8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What symbol is used in interval notation to indicate that an endpoint is not included?
Square bracket
Angle bracket
Parenthesis
Curly brace
Tags
CCSS.6.EE.B.8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In interval notation, how is the interval for x < 3 expressed?
(-∞, 3]
(-∞, 3)
[3, ∞)
(3, ∞)
Tags
CCSS.6.EE.B.8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is always used in interval notation for positive and negative infinity?
Parentheses
Angle brackets
Curly braces
Square brackets
Tags
CCSS.HSF-IF.C.7A
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