One Step Inequalities Lesson Slides: 12 Slides (8th Grade)

12 Slides • 7 Questions

1

One Step Inequalities

2

Inequality
An open sentence that contains

<,>,\le,\ge

> Greater Than
≥ Greater than or equal to
< Less Than
≤ Less than or equal to

3

4

5

6

7

Multiple Choice

True or false less than is a closed dot?

<

1

True

2

False

8

Multiple Choice

True or false greater than on a graph the arrow goes to the left?

1

True

2

False

9

Multiple Choice

Solve the inequality.

n-5\ge\ 2

1

$n\le7$

2

$n\ge3$

3

$n\ge7$

4

$n\le-3$

10

11

What is the mistake?

12

Check the solution

Plug the x < 10 back into the equation to see if it works. You notice that 13 is not less than 7. Therefore, we made a mistake somewhere.

13

Is there a mistake?

14

Multiple Choice

Solve the inequality.

5>n-3

1

$8<n$

2

$8>n$

3

$2>n$

4

$2<n$

15

Solve the inequality.

n+4\ge16

What is the first step?
The opposite of adding 4 is to subtract 4
Subtract 4 to both sides
16 - 4 = 12
The sign stays the same since we are subtracting
$n\ge12$

16

Multiple Select

When does the inequality sign change?

1

When adding

2

When multiplying

3

When dividing by a negative

4

When multiplying by a negative

5

When subtracting

17

Multiple Choice

Solve the inequality.

-7y\le14

1

$y\le-2$

2

$y\ge-2$

3

$y\le2$

4

$y\ge2$

18

$-7y\le14$

First step is to do what?
$-7y$ means to multiply y by -7
First step is to do the opposite which is divide by -7 to both sides
Remember divide by a negative we switch the signs
so, $y\ge-2$

19

Poll

How do you feel about inequalities?

I feel confident

I feel like it is a lot to know

I am confused

I feel like I need more practice

I feel okay

One Step Inequalities

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