Question

Which expression represents the distance between point (0, a) and point (a, 0) on a coordinate grid?

Answer 1

`\sqrt2a^(2)` is the correct answer
Or A

Answer 2

the distance between any 2 points (x1,y1) and (x2,y2) is

`D= √((x2-x1)^2+(y2-y1)^2)`

given
(0,a) and (a,0)

`D= √((a-0)^2+(0-a)^2)`

`D= √((a)^2+(-a)^2)`

`D= √(a^2+a^2)`

`D= √(2a^2)`

`D= a√(2)`

the disance is a√2