Question

On the number line, the coordinates of X,Y, and W are -8,-5,4 and 7,respectively. Find the lengths of the two segments below. Then tell whether they are congruent.
XY and ZW

Answer 1

@Jonathan1997

Answer 2

So what are the coordinates for X, Y, Z, W?

Answer 3

-8 -5 4 and 7

Answer 4

Okay, so X to Y is (-8, -5) and Z to W is (4,7) right...?

Answer 5

I'm not sure.. ha not good at this part/

Answer 6

I would say so!

Answer 7

Okay so what now?

Answer 8

Plot them on a graph

Answer 9

Okay but it says The length of XY is
and the length of ZW is

Answer 10

Hmmm! I hate this kind of math!!!! Lol! Okay, so..... Hmmm.

Answer 11

haha i do too

Answer 12

Any ideas...?

Answer 13

Honestly no.. These problems i suck at /:

Answer 14

Let's put it to the side for now! So next question

Answer 15

Can you retype the problem exactly as it states it?

Answer 16

On the number line, the coordinates of X,Y, and W are -8,-5,4 and 7,respectively. Find the lengths of the two segments below. Then tell whether they are congruent.
XY and ZW
The length of XY is _ (type and integer or a decimal)
The length of ZW is _ (type and integer or a decimal)

Answer 17

are you missing a "z" in the beginning? lol so it means to say "On a number line, the coordinates of X,Y,W, and Z*** are -8,5,4, and 7 respectively?

Answer 18

haha yes, sorry about that!

Answer 19

OKAY!!! Well that is where I was confizzled too!! xP

Answer 20

Sorry Jonathan!

Answer 21

Okay so this pretty much asking the difference between the two coordinates, like between "XY" and "ZW". When doing these types of problems always take the final value where it ended and subtract from it the initial spot where it began, for example doing "XY"

we know it began at "-5" and then moved to "-8" since "-5" is GREATER than "-8" so we set up the equation as so:

\[((-8) - (-5)) = 3\] remember when you subtract a negative, it's like adding a number since the two double "minus" signs turn out to be a "+" right?
getting it so far?

Answer 22

So far yes i'm getting it

Answer 23

okay, now you would do the same thing for the line segment of "ZW", you would take it's initial spot and subtract it from its final spot. How would you do this?

Answer 24

wouldn't you do ((7)-(4))=3

Answer 25

YES! Awesome. Now it's asking are these two segments "congruent" that means are they the "same". Are they the same?

Answer 26

Yes

Answer 27

Then, that is your answer to all three parts of this problem. You are done, lil sis =)

Answer 28

Awesome!!! Thank you big bro!! (: