Practice Examples (2.2) - Linear Inequalities - IB 10 Mathematics

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6 sample questions

Question 1.
Solve: 4x + 1 ≤ 9
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Start by isolating x.
Question 2.
Graph the inequality: x - 5 > 0
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What does greater than mean?
3Question 3.
Which symbol represents greater than?
- >
- <
- ≤
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Think of 'greater' as your clue.
4Question 4.
True or False: When you multiply both sides of an inequality by a negative, the inequality sign reverses.
- True
- False
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Remember the results of multiplication with negative numbers.
Question 5.
You have $60 to buy pens and notebooks. If pens cost $2 and notebooks cost $5, write a system of inequalities to represent the maximum number of each you can buy.
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Consider combining costs into one inequality.
Question 6.
A bakery sells loaves of bread for $3 and pastries for $2. If a customer can spend no more than $40, how many of each can they buy? Write the inequality and find one possible combination.
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Focus on dividing the total cost into parts.

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