
4/4 - Systems of Inequalities
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Standards-aligned
Nicole Richardson
Used 24+ times
FREE Resource
11 Slides • 5 Questions
1
Remove Your
Hoodie
Put up ALL
headphones/ earbuds
Prepare to Relinquish your cellphone until the end of class.
2
Multiple Choice
Convert the following inequality to slope-intercept for and describe the line. (7 min)
3x−2y≤10
y≥23x−5
solid, shaded above
y≥−23x−5
dashed, shaded above
y≤23x−5
solid, shaded below
y≤−23x−5
dashed, shaded below
3
4
Type of Line to Draw
Inequality
Symbol
Type of Line
> or <
Dotted Line
> or <
Solid Line
1 min
Lesson Vocabulary
5
If the
inequality is:
Shade
y > mx + b
or
y > mx + b
Above the
y-intercept
y < mx + b
or
y < mx + b
Below the
y-intercept
1 min
6
Multiple Select
Pick two options to describe the line below.
y≥3x−2
Solid
Dashed
Shade above the y-intercept
Shade below the y-intercept
7
Multiple Select
Pick to options two describe the line below.
y<23x−2
Solid
Dashed
Shade above the y-intercept
Shade below the y-intercept
8
Learning Objective:
SWBAT graph systems of linear inequalities and determine reasonable solutions on a coordinate plane.
Demonstration of Learning:
Given 4 problems, I will be able to correctly graph systems of linear inequalities and determine the reasonable solution on a coordinate plane of at least 3 of 4 problems.
Systems of Linear Inequalities
1 min
9
1 min
10
You have 3 minutes to graph
y > x - 2
on your graph paper.
Lap 1
6 min
y-int: ______
Slope: _____
Line: _____
Shade:_____
11
6 min
y > x - 2
y-int: ______
Slope: _____
Line: _____
Shade:_____
12
Multiple Select
Select ALL the ordered pairs that are a solution to the system of inequalities. (Lap 2)
(2,0)
(0, 0)
(4, 5)
(-4, 3)
(3, -3)
13
You have 6 minutes to graph the following system of inequalities. Verify your system with your partner.
10 min
{
14
You have 1 minute to write a solution on your whiteboard that would be a solution to the system of inequalities.
Lap 3
5 min
15
Demonstration of Learning
31
16
Open Ended
Explain how to determine the solution to a system of linear inequalities from a graph.
Use complete sentences: The solution to system of inequalities can be determined by ....
Remove Your
Hoodie
Put up ALL
headphones/ earbuds
Prepare to Relinquish your cellphone until the end of class.
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