Question

What is the distance between points A and B? Round your answer to the nearest tenth

A (22)
1
D
(21)
3
1
2

Answer 1

AB = 5 units

Explanation:

Calculate the distance d using the distance formula

d =
`\sqrt{(x_(2)-x_(1))^2+(y_(2)-y_(1))^2 }`

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

AB =
`√((-2-2)^2+(-1-2)^2)`

=
`√((-4)^2+(-3)^2)`

=
`√(16+9)`

=
`√(25)`

= 5