Question

Find, which of the following points lie on the line x – 2y + 5 = 0 :

(2, –1.5)

Answer 1

The given line is x − 2y + 5 = 0.

Substituting x = 2 and y = −1.5 in the given equation, we have:

L.H.S. = 2 − 2 × (−1.5) + 5

= 2 + 3 + 5

= 10 ≠ R.H.S.

Thus, the point (2, −1.5) does not lie on the given line.