Solving Linear Inequalities (Grade 10 NSC Matric Mathematics): Flashcards
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Practise the cards
10 cards from this deck
Linear inequality
Linear inequality
Like linear equation but uses inequality symbols, power = 1
Equations vs inequalities: type of solution
Equations vs inequalities: type of solution
Equations: single point; Inequalities: solution set (range)
Rule when multiplying/dividing by negative number
Rule when multiplying/dividing by negative number
Reverse the direction of the inequality sign
Filled/closed dot on number line means
Filled/closed dot on number line means
Value is included in solution (≤ or ≥)
Open/hollow circle on number line means
Open/hollow circle on number line means
Value is NOT included in solution (< or >)
Round brackets ( ) in interval notation
Round brackets ( ) in interval notation
Endpoint is NOT included
Square brackets [ ] in interval notation
Square brackets [ ] in interval notation
Endpoint IS included
Brackets with infinity symbols (∞ or -∞)
Brackets with infinity symbols (∞ or -∞)
Always use round brackets
Solve for
Solve for
(multiply by -1, flip sign)
Most common error with linear inequalities
Most common error with linear inequalities
Forgetting to flip sign when multiplying/dividing by negative