Question

Find the distance between the points (-4, 3) and (5, -1)

Answer 1

distance formula\[d=\sqrt{(x_2-x_1)^2 +(y_2-y_1)^2}\]

Answer 2

I did it and ended up with \[\sqrt{65}\] is that right???

Answer 3

that's not correct, how did you get 65?

Answer 4

\[\sqrt{(5+4)^{2}+ (-1-3)^{2}} = \sqrt{9^{2 }- 4^{2}} = \sqrt{81-16}\]

Answer 5

it should be 81+16 not 81-16

Answer 6

\[\sqrt{(5+4)^{2}+ (-1-3)^{2}} = \sqrt{9^{2 }- 4^{2}} = \sqrt{81-16}\] ^^
bad :)

Answer 7

now i got the square root of 162...

Answer 8

its +16 not -16 because you're squaring a negative number
and a negative number square is always positive

Answer 9

So if it's 81+16 it ends up being the square root of 97? And I just leave it as that?

Answer 10

well if it cant be factored then you just leave it as it is

Answer 11

is that what you got too?

Answer 12

yes

Answer 13

ok thank you!!