Question

What is the distance between points P(10, 7) and Q(1, 8)?
a.61
b.73
c.81
d.82

Answer 1

\[d(p_1,p_2)=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]

Answer 2

recall that \[P_i(x_i,y_i)\] is the order of components

Answer 3

so in your case, you would take
\[x_1=10, x_2=1, y_1=7, y_2=8\]

Answer 4

Okay thank you