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One-Step Inequalities
HS: High School
Created on November 22, 2024
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Transcript
One-Step inequalities
OBJECTIVES
- Solve inequalities with addition and subtraction
- Solve inequalities with multiplication and division
Next
y + 7 < 11 y < 4
-5 -5
-7 -7
to solve inequalities
use inverse operations
Next
but there's one catch!
3x > 12 x > 4
5*
*5
3 3
flip the sign when...
You multiply or divide by a negative value
Do flip
Don't flip
-3x > 12 x < -4
3x > -12 x > -4
-3 -3
3 3
Next
answer
Next
answer
solve & Graph
answer
-2x > 10
Next
zoom poll
4x > -24
a. x > -6 b. x < -6 C. x < 6
a. x > -30 b. x < -30 C. x < 30
Next
zoom poll
14 + y > 11
r - 11 < -18
a. R > -7 b. R < -7 C. R < -29
a. y > -3 b. y < -3 C. y > 25
Next
real world apps
a family is driving cross-country at an average of 65 miles per hour. They want to travel no more than 450 miles per day. How many hours per day should they drive?
answer
Next
real world apps
whitney wants to have at least $300 in the bank for school shopping in august. she already has $45 saved. How much more does she need?
answer
Next
common mistakes!
a lot of people flip the sign when they don't need to! For example, neither of these need to be flipped.
Next
find the mistake!
answer
answer
Next
remember your cfu question in edio
You should be able to
- Solve inequalities with addition and subtraction
- Solve inequalities with multiplication and division
2-Step Inequalities