Question

What is the distance between the points (1, –6) and (–5, 2)?

A.
5.6 units

B.
7.2 units

C.
9 units

D.
10 units

Answer 1

\[\LARGE d = \sqrt {{{\left( {{x_2} - {x_1}} \right)}^2} + {{\left( {{y_2} - {y_1}} \right)}^2}} \]

Answer 2

Distance = \[\sqrt{(1+5)^{2}+(-6-2)^{2}} = \sqrt{6^{2}+8^{2}} = \sqrt{100} = 10\]