Question

The distance AB= [?] Round to the nearest tenth.

Answer 1

• 3.6

Explanation:

A = ( -2, 1 )

B = ( 1, -1 )

`\boxed{\bf x_1 : - 2}`
`\boxed{\bf x_2 : 1}`

`\boxed{\bf y_1 : 1}`
`\boxed{\bf y_2 : - 1}`

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• 
  `\sf d = \sqrt{(x_2 -x_1) ^(2) + ( y_2 - y_1) ^(2) }`
• 
  `\sf d = \sqrt{(1 - ( - 2)) ^(2) + ( - 1 - 1) ^(2) }`
• 
  `\sf d = \sqrt{ {3}^(2) + {( - 2)}^(2) }`
• 
  `\sf d = √((9 + 4))`
• 
  `\sf d = √(13)`
• 
  `\sf d = 3.6`

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