NathalyaM645169 NathalyaM645169
  • 03-11-2022
  • Mathematics
contestada

Find the length of RS.A.73 unitsB.11 unitsC.About 8.5 unitsD About 3.3 units

Find the length of RSA73 unitsB11 unitsCAbout 85 unitsD About 33 units class=

Respuesta :

AbenaC250507 AbenaC250507
  • 03-11-2022

Let,

[tex]\begin{gathered} R=(x_1,y_1)=(-4,1) \\ S=(x_2,y_2)=(-1,9) \end{gathered}[/tex]

The expression to calculate the distance between two points is,

[tex]\begin{gathered} D=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \\ D=\sqrt[]{(-1-(-4))^2+(9-1)^2} \\ D=\sqrt[]{(3)^2+(8)^2} \\ D=\sqrt[]{9+64} \\ D=\sqrt[]{73} \\ D=8.5\text{ units} \end{gathered}[/tex]

Thus, the length of the line RS is 8.5 units, and the correct option is option C.

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