Question

The coordinates of a point are (0, 1) and the ordinate of another point is –3. If the distance between the two points is 5, then the abscissa of another point is-

• A. 3
• B. –3
• C. ± 3
• D. 1

Answer 1

Answer: (C)

± 3

Answer 2

Let the point B (x, –3) and A(0, 1)

Given AB = 5 $\sqrt{x^{2} + (1 + 3)^{2}}$ = 5

Ž x² = 25 – 16

x = ± 3