just a simple true or false question please help

the distance between points (x1 y1) and (4 8) is the square root of (x1 - 8)^2 + ( y 1 - 4)^2 the 1's by the x's and y's are lower then the variables btw

Question

just a simple true or false question please help


the distance between points (x1 y1) and (4 8) is the square root of (x1 - 8)^2 + ( y 1 - 4)^2 the 1's by the x's and y's are lower then the variables  btw

kirbykirby · Answer

$$ \sqrt{(x_1-8)^2+(y_1-4)^2} ~ ?$$

anonymous · Answer

I know the distance formula but how do I do it with only one set of end points?

kirbykirby · Answer

Well you can't know the distance with just one set of points. But, the question is asking if that formulation for the distance between $(x_1, y_1)$ and $(4, 8)$ is true?

anonymous · Answer

yeah

kirbykirby · Answer

False then. For it to be true, it would have to be $\sqrt{(x_1-4)^2+(y_1-8)^2} ~ ?$ because the formula is $\sqrt{(x_1-x_2)^2+(y_1-y_2)^2} ~ ?$  (it doesnt't matter if you switch the order of x1 and x2 , or y1 and y2 to make it (x2 - x1)  )

anonymous · Answer

Okay thank you

kirbykirby · Answer

:) yw