Question

At the end of her work day, Rosa leaves her office and goes directly to her bank. On the graph that shows the locations of Rosa's office and bank, every unit represents a kilometer. To the nearest tenth of a kilometer, approximately how far does Rosa travel?
Missing Metadata


2.2 km

10 km

7.3 km

9 km

Answer 1

hint:
we have to compute the distance between these points:
\((-4,4)\) and \((-6,-3)\)

Answer 2

so we can write:
\[\begin{gathered}
d = \sqrt {{{\left( {{x_2} - {x_1}} \right)}^2} + {{\left( {{y_2} - {y_1}} \right)}^2}} = \hfill \\
\hfill \\
= \sqrt {{{\left( { - 4 - \left( { - 6} \right)} \right)}^2} + {{\left( {4 - \left( { - 3} \right)} \right)}^2}} = \hfill \\
\hfill \\
= \sqrt {{{\left( 2 \right)}^2} + {{\left( 7 \right)}^2}} = ...? \hfill \\
\end{gathered} \]

Answer 3

7.2801

Answer 4

yes! So, what is the right option?

Answer 5

7.3

Answer 6

that's right!

Answer 7

Thanks

Answer 8

:)