Question

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

Answer 1

Answer:

• 3.6

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

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