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?
7.3 km

9 km

10 km

2.2 km

Answer 1

Find the distance between the point of bank and the point of office.

$\sqrt{(x2 - x1)^{2}+ (y2 - y1)^{2}}$
$\sqrt{(-4 - (-6)^2 + (4 - (-3)^2}$
$\sqrt{(2)^2 + (7)^2}$
$\sqrt{4 + 49}$
$\sqrt{53}$


The distance she travels is approximately 7.3 km.

Hope this helps :)