Question

The distance between the points (1,8) and (4,4) is equal to 5.

Answer 1

True or false?

Answer 2

do you know how to compute the distance between 2 points?

Answer 3

no i dont. can u explain it to me?

Answer 4

\[\sqrt{(\Delta x)^2+(\Delta y)^2}\]

Answer 5

woahh

Answer 6

thanks

Answer 7

k...do you know what to do from here?

Answer 8

no, ive actually never seen that. im just going to try it

Answer 9

so, change in x is 4-1=3
change in y is:4-8=-4
square them. add the result. take square root.

Answer 10

thank you very much. i appreciate it

Answer 11

no prob; let me know what you get

Answer 12

okay im doing it now

Answer 13

i do the -4+3=-1?

Answer 14

no. square each one individually first.

Answer 15

\[3^2+(-4)^2\]

Answer 16

then take the square root of whatever you get

Answer 17

9+-16=-7

Answer 18

no

Answer 19

no wait, i did it wrong because i cant square a neg. number

Answer 20

9+16
because\[(-4)^2=(-4)(-4)=16\]the square of a negative is a positive number

Answer 21

oh sorry. i suck at math.
so i square the 16 and get 4?

Answer 22

you square the -4. The gives you 16. the negative sign goes away.

Answer 23

so now you should have:\[\sqrt{9+16}\]

Answer 24

9+16=25
25=5

Answer 25

well I assume you mean\[\sqrt{25}=5\]but yeah, there's your distance

Answer 26

Yes it´s 5.

Answer 27

sqrt((x2-x1)^2+(y2-y1)^2)= sqrt ((4-1)^2+(4-8)^2

Answer 28

sqrt((3)^2 +sqrt(-4)^2) = sqrt((9) +sqrt(16))= sqrt (25) = 5