Question

1. Calculate the distance between P1 and P2 using the

√(x₂ − x₁)² + (√₂ − Y₁)².
-
P1
(2,1)
distance formula
P2
(5,7)
d=

Answer 1

`~~~~~~~~~~~~\textit{distance between 2 points} \\\\ P1(\stackrel{x_1}{2}~,~\stackrel{y_1}{1})\qquad P2(\stackrel{x_2}{5}~,~\stackrel{y_2}{7})\qquad \qquad d = √(( x_2- x_1)^2 + ( y_2- y_1)^2) \\\\\\ P1P2=√((~~5 - 2~~)^2 + (~~7 - 1~~)^2) \implies P1P2=√(( 3 )^2 + ( 6 )^2) \\\\\\ P1P2=√( 9 + 36 ) \implies P1P2=√( 45 )\implies P1P2\approx 6.71`