You're viewing free preview questions — 4 questions previewing here — subscribe to unlock 76 more, plus the Full Question Bank, Mock Papers & Worksheets.Upgrade
Introduction to Variables and Constants — Free MYP2 Mathematics Practice Questions
1QuestionDefining Constants and CoefficientsConcept Practice
2 marks~3 minCriterion A
A rectangle has side lengths of cm and cm, giving an area of cm².
a
Identify the variable in the expression . [1]
b
The number in is called a coefficient — a number that multiplies a variable. State the value of the coefficient. [1]
Solutions
2QuestionBuilding Expressions from Verbal DescriptionsAssessment Practice
2 marks~3 minCriterion D
A fruit seller uses the expression
where is the cost of one apple (in dollars) and is the cost of one banana (in dollars).
Explain one real-world limitation of using this expression to model the fruit seller's prices. [2]
where is the cost of one apple (in dollars) and is the cost of one banana (in dollars).
Explain one real-world limitation of using this expression to model the fruit seller's prices. [2]
Solutions
3QuestionBuilding Expressions from Verbal DescriptionsConcept Practice
2 marks~3 minCriterion B
Each apple costs 2 dollars and there is a fixed fee of 1 dollar.
| Number of apples () | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Total cost () in dollars | 3 | 5 | 7 | 9 |
a
Identify the expression for in terms of . [1]
b
Calculate the total cost when . [1]
Solutions
4QuestionRecognizing Like and Unlike TermsAssessment Practice
6 marks~9 minCriterion C
Tom buys apples at dollars each and bananas at dollars each. He writes his total cost as and simplifies it to .
a
Identify the error in Tom's simplification. [1]
b
Explain why and cannot be combined. In your answer, refer to what and represent. [2]
c
Compare the correct total cost with Tom's incorrect total cost when and . State whether Tom overestimates or underestimates, and describe one practical consequence. [3]
Solutions
That's every free question here — 4 of 80.
+76 more questions, plus Mock Papers & Worksheets, are waiting in Premium.