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One-Step Inequalities
HS: High School
Created on November 22, 2024
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- Solve inequalities with addition and subtraction
- Solve inequalities with multiplication and division
OBJECTIVES
One-Step inequalities
-5 -5
5*
*5
3 3
3x > 12 x > 4
-7 -7
y + 7 < 11 y < 4
but there's one catch!
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to solve inequalities
use inverse operations
-3 -3
-3x > 12 x > -4
Do flip
Don't flip
3 3
3x > -12 x > -4
answer
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flip the sign when...
You multiply or divide by a negative value
answer
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solve & Graph
-2x > 10
answer
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a. x > -6 b. x < -6 C. x < 6
zoom poll
4x > -24
a. x > -30 b. x < -30 C. x < 30
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14 + y > 11
a. x > -7 b. x < -7 C. x < -29
zoom poll
r - 11 < -18
a. x > -3 b. x < -3 C. x > 25
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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?
real world apps
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answer
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?
real world apps
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answer
a lot of people flip the sign when they don't need to! For example, neither of these need to be flipped.
common mistakes!
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find the mistake!
answer
answer
Next
- Solve inequalities with addition and subtraction
- Solve inequalities with multiplication and division
You should be able to
2-Step Inequalities
remember your cfu question in edio