Question

find the length and midpoint of the segment joining the two given points. s(9,12)and u(-9,-12)

Answer 1

The length d can be found using the formuls
\[d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]
here
\(x_1=9,~x_2=-9,~y_1=12,~y_2=-12\)
Does that help? @tsdsfisdifigf

Answer 2

is that supposed to be my answer?

Answer 3

im confused...

Answer 4

well if u plug in those values in the formula and simplify u can find the length

Answer 5

a. 30;(0,0) b.27;(10.5,10) c.15;(4,9) d. 45;(-8,9)

Answer 6

oh okay. lol thanks so much :)

Answer 7

well actually i did when i was trying to find the midpoint. i got (0,3.5) but idk why its wrong. idk how to find the length

Answer 8

so found the length?

Answer 9

nope

Answer 10

oh wait im sorry. i thought you gave me the midpoint formula. i didnt notice it was for the length. i see what you did there

Answer 11

Let us assume that the coordinates of the midpoint be (x,y).
\[x=\frac{x_1+x_2}{2}\]
\[y=\frac{y_1+y_2}{2}\]

Answer 12

i got 36

Answer 13

now i got 6.48

Answer 14

36 for the length?

Answer 15

yep but now i got 6.48. i think that was for the distance. idg it

Answer 16

now i got 0

Answer 17

\[d=\sqrt{(-9-9)^2+(-12-12)^2}\]
\[=\sqrt{(-18)^2+(-24)^2}\]

Answer 18

thank you! i had what you written down i just forgot to add them after i squared them.

Answer 19

Welcome:) so vat is d=?

Answer 20

(0,0) :)

Answer 21

no wait thats the midpoint lol. owells. i just needed the midpoint and length <3

Answer 22

yup. ur midpoint is right:) bt length is vat?

Answer 23

30 lol

Answer 24

yup perfect:)

Answer 25

:Dyay

Answer 26

good work:D