Question

If a is a real number, what is
distance between the Y axis and
line x = a ?

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Answer 1

Answer:

The distance is a units, assuming a is an arbitrary constant, which it is, given that you stated it’s a real number.

This is because the y-axis is the same as the line x=0, and so the difference between the two lines will be a−0 units, or simply a units.