Answer:
A and E
Step-by-step explanation:
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex] ← distance formula
it is important that the x and y coordinates are placed correctly, that is not mixed together.
First version
let (x₁, y₁ ) = X (- 5, 4 ) and (x₂, y₂ ) = Y (7, 15 ) , then
XY = [tex]\sqrt{(7-(-5)^2+(15-4)^2}[/tex] → A
or
Second version
let (x₁, y₁ ) = Y (7, 15 ) and (x₂, y₂ ) = X (- 5, 4 ) , then
XY = [tex]\sqrt{(-5-7)^2+(4-15)^2}[/tex] → E
