Question

Find the distance between points R(-4,1) and S(2,7)

Answer 1

Distance between points (x1,y1) and (x2,y2) is
\(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)
does this help ??

Answer 2

very much

Answer 3

so what distance did u get ?

Answer 4

working it out

Answer 5

i got square root of -72.?

Answer 6

You can't get a negative distance, redo it.

Answer 7

-72 ? or +72 ?

Answer 8

ill say +72 ;)

Answer 9

yeah,
sqrt 72 is correct :)

Answer 10

you can simplify that further if you want

Answer 11

that's not an answer choice..

Answer 12

because that can be simplified

Answer 13

how?

Answer 14

can u factor 72 ?

Answer 15

1,2,3,4,6,8,9,12,18,24,36,72?

Answer 16

nice!
so, 72 = 2*2*2*3*3
agreed ?

Answer 17

yeah

Answer 18

\(\sqrt {72} = \sqrt {2^2*3^2 *2}\)

Answer 19

\(\sqrt {72 }= 2*3\sqrt 2\)

Answer 20

thanks lots

Answer 21

welcome ^_^