Practice Linear Equations In Two Variables (4) - Linear Equations In Two Variables

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Write a linear equation for 'The sum of two numbers is 20'.
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Think about what variables can represent the unknown numbers.
Question 2.
Convert the equation 3a + 2b = 6 into the form ax + by + c = 0.
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You need to bring all terms to one side.
3Question 3.
What is the standard form of a linear equation?
- ax + by + c = 0
- a + b = c
- xy + b = c
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Remember the general representation of linear equations.
4Question 4.
A linear equation in two variables has how many solutions?
- True
- False
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Think about the graph representation of the equation.
Question 5.
Find and graph three solutions for the equation 5x - 2y = 10.
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Start by substituting simple values like 0 for x or y.
Question 6.
From the equation -3x + 4y = 12, express y in terms of x and find a solution.
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Isolate y to express it in a clearer form.

5 more questions in this section. Enroll free to practise them all.