Substitute x = 4 into y = 3x, which yields y = 3(4) = 12. Because the calculated value 12 does not equal the given y-coordinate 10, the point (4, 10) does not lie on the line.
Ganita Manjari Class 9 Maths part 2 Chapter 13 Solutions
Class 9 Ganita Manjari Part 2 Chapter 13 Page 120 Question Answer
A point lies on a line if and only if its coordinates satisfy the equation of the line. Substituting the x-coordinate x = 4 into y = 3x gives y = 3(4) = 12. Since the resulting y-value is 12 and not 10, the ordered pair (4, 10) fails to satisfy the equation. Hence, the point (4, 10) does not lie on the line.
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