Question

Find the distance between the coordinates:
1. (2,1) & (8,9)
2. (5,6) & (0,3)
3. (-5,4) & (7,16)

Answer 1

for each one use
\[\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\] for example the first one is
\[\sqrt({8-2)^2+(9-1)^2}=\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10\]

Answer 2

So number one is 10?