The user travelled 125.3 km to track his phone.
The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is given by:
[tex]AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Given the points (18, 14) and (2, 6). The distance is:
[tex]Distance=\sqrt{(6-14)^2+(2-18)^2} =17.9\ units[/tex]
Each unit is 7 km, hence:
Distance between the two points = 17.9 units * 7 km per unit = 125.3 km
The user travelled 125.3 km to track his phone.
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