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If ‘a’ is a real number, what is the distance between the Y-axis and the line x = a? |
Answer» Equation of Y-axis is x = 0. Since, ‘a’ is a real number, there are two possibilities. Case I: a > 0 Case II: a < 0 ∴ Distance between the Y-axis and the line x = a = a-0 = a Since, |a| = a, a > 0 = – a, a < 0 ∴ Distance between the Y-axis and the line x = a is |a| |
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