Question

What is the distance etween (-1,2) and (2,7)

Answer 1

`√(34)`

Explanation:

Calculate the distance (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (2, 7)

d =
`√((2+1)^2+(7-2)^2)`

=
`√(3^2+5^2)`

=
`√(9+25)` =
`√(34)` ← exact distance

Answer 2

d(A,B)=square root of 34 ≈ 5.831