

Compound Inequalities and Interval Notation
Presentation
•
Mathematics
•
8th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
10 Slides • 10 Questions
1
Reviewing Compound Inequalities, Isolating Variables, and Graphing Lines
Happy Monday! Let's review some ideas from the last few weeks :)

2
Review of Compound Inequalties
This topic will come up again this week.
3
4
Multiple Select
4≤x≤10
Check all that are true regarding this compound inequality.
This is an "AND" type question
This is an "OR" type question
The graph will look like oars on a boat (kick out to the sides)
The graph will shade in between the values.
The values of 4 and 10 will have brackets on them.
5
Multiple Choice
What is the correct inequality notation for this graphed solution?
x<−3 or x>−2
x>−3 or x<−2
x≤−3 or x≥−2
x<−3 and x>−2
x>−3 and x<−2
6
Multiple Choice
What is the correct interval notation for this graphed solution?
(−3,2)
(−∞,−3)∪(−2,∞)
(−∞,−3]∪[−2,∞]
[−3,−2]
7
Review of Isolating Variables
This topic will come up again this week.
8
9
Multiple Choice
When trying to solve for y, which of the following should be the first step?
7y=8
4y=−3x+8
4y=3x+8
x+34y=38
10
Multiple Choice
What is the NEXT correct step in the following question when isolating for y:
5xy=9
5y=9−xy
y(x+5)=9
11
Let's review graphing lines!
Again, we will be revisiting this skill this week.
12
13
Fill in the Blanks
Type answer...
14
Multiple Select
When graphing the given line, which of the following are TRUE?
Check ALL that apply!
y=−43x+7
Start by marking a point at (0,7)
Start by marking a point at (7,0)
To create a second point, move up 3 and right 4
To create a second point, move down 3 and right 4
You need to graph at least 2 points to make a line.
15
Multiple Choice
Which of the following is a VERTICAL line?
y=3x
x=3
y=3
x=3y
16
Now Put Those Concepts Together!
In this week, we will need to graph lines to solve systems, and sometimes the equation is not in slope-intercept form.
17
Multiple Choice
What is the slope of the given equation?
4x+3y=934
3
−34
−43
3
18
Multiple Choice
What is the y-intercept of the given equation?
4x+3y=9−34
3
4
9
19
A Preview to an Upcoming Lesson
Solving Systems by Graphing
20
Reviewing Compound Inequalities, Isolating Variables, and Graphing Lines
Happy Monday! Let's review some ideas from the last few weeks :)

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