Solving inequalities involving addition or subtraction

Solving inequalities involving addition or subtraction

Example 1

x-6  $\ge$  -10

x-6+6 $\ge$  -10+6

x  $\ge$  -4
                      *-------->
_________|__________
                    -4

Graphing Trick

If letter is on the left and number is on the right, then inequality arrow points in the direction that your graphing arrow should point
X  $\ge$   -  4

0---------->

Example 2

w-(-9) $\le$  8

w + 9  $\le$  8

w + 9 - 9  $\le$  8 - 9
w  $\le$  - 1
          <--------*
----------------|-----------------
                     -1

Table Top Teamwork

Next I will give you a problem on board. I want you to write it on your table and solve it step by step.

Then consult your team to verify it is correct. I want to see each step before the answer.

Make a quiet short team noise or gesture when done!

Examples: Hoot, whistle, aye, salute, thumbs up, ect.

Table Team Work #1

z+5  $>$  -3

Solution

z+5  $>$  -3

z+5-5  $>$  -3-5
z  $>$  -8
        o---------->
------|----------------
       -8

Homework 2.2

3-33 Every Third Problem

For Fun: There is a Quizizz at joinmyquiz.com with number code 57421776 that will be available until tomorrow morning at 7:30am. I am experimenting and would like each of you to complete the 12 multiple choice questions.