MCQ
A linear equation in two variables is of the form ax + by + c = 0, where?
- Aa ≠ 0 and b ≠ 0
- Ba = 0 and b = 0
- Ca ≠ 0 and b = 0
- Da = 0 and b ≠ 0
✓
Answer
- a ≠ 0 and b ≠ 0
Solution:
A linear equation in two variables is of the form ax + by + c = 0 as a and b are coefficient of x and y so if a = 0 and b = 0 or either of one is zero in that case the equation will be one variable or their will be no equation respectively.
Therefore when a ≠ 0 and b ≠ 0 then only the equation will be in two variable.
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