Question

True or false?

Answer 1

@timo86m

Answer 2

Well i think it false cuzz it should be

sqrt((x2-x1)^2(y2-y1)^2)
^ ^
but they have the order flipped
Wait for second opinion

Answer 3

hold on i think it a labeling error

Answer 4

d = sqrt((x2-x1)^2 + (y2-y1)^2)

d = sqrt((1-x1)^2 + (1-y1)^2) ... plug in (x2,y2) = (1,1)

Answer 5

@jim_thompson5910

Answer 6

what do you think?

Answer 7

(x1-1)^2+(y1-1)^2

Answer 8

I think true

BUT they mislead you with labeling.

usually it is x2-x1

not x1-x2 lol but they labeled it in right order at least.

Answer 9

yes it's true and the order doesn't matter since (x-y)^2 = (y-x)^2 is true for all real numbers x and y

Answer 10

so that's why you can say (x2-x1)^2 or (x1-x2)^2 and mean the same thing

Answer 11

well if it is squarred then it makes it positive. But still gotta be careful with labeling.