Practice Examples Of Solutions (4.3.3) - Linear Equations In Two Variables

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5 sample questions

Question 1.
Write a linear equation representing the statement: 'The cost of a notebook is twice the cost of a pen.'
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Think about how you can represent the relationship mathematically.
Question 2.
Identify two solutions for the equation $4x + 3y = 12$ .
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Try substituting zero for either variable.
3Question 3.
An ordered pair is a solution for a linear equation when:
- It satisfies the equation.
- It does not satisfy the equation.
- It is a random pair of numbers.
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Recall how we find solutions for the equations!
4Question 4.
True or False: A linear equation in two variables can have only one solution.
- True
- False
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Think about how we find solutions for the equation.
Question 5.
Using the equation $5x + 2y = 20$ , find three pairs that can solve it, ensuring a range of values for $x$ .
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Choose varied values for \$x\$ to see how \$y\$ adjusts.

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