Question

What is the distance between points (5, 1) and (2, -3)?

Answer 1

5

Explanation:

The distance between two points
`P` and
`Q` is
`d = \sqrt{\sum_(i=1)^(n) \left(q_(i) - p_(i)\right)^(2)}` (
`n` s the number of coordinates of each of the two points,
`p_i` ,
`i=1..n` and
`q_i,i=1..n`

are the coordinates of the first and the second points respectively).

Thus,
`d = \sqrt{\left(2 - 5\right)^(2) + \left(-3 - 1\right)^(2)}=5.`