Question

If the distance between the points (4, p) and (1, 0) is 5, then p =

(a) ± 4

(b) 4

(c) −4

(d) 0

Answer 1

It is given that distance between P (4, p) and is 5.

In general, the distance between A and B is given by,

So,

On further simplification,

So,

So the answer is (a)