please help meeeee !!!! medal and fan <3

- anonymous

please help meeeee !!!! medal and fan <3

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- anonymous

##### 1 Attachment

- anonymous

use the distance formula\[d =\sqrt{(x2-x1)^2 + (y2-y1)^2}\]

- anonymous

are u sure that is the right formula to use ?

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## More answers

- anonymous

x,1, y1 = -2, -4 and X2, y2 = 4, 3

- anonymous

whats so with that logic i was right ?

- anonymous

\[d= \sqrt{4-(-2)^2+(3-(-4)^2)}\]

- anonymous

\[d= \sqrt{4-(4) + (3-16)}\]

- anonymous

\[d= \sqrt{0 -13}\]

- anonymous

This ends up as a complex number d= 13i

- anonymous

have you studied complex numbers?

- anonymous

naw lol i just really cant get this question wrong :p

- anonymous

maybe I have made a mistake, its not in your four options

- anonymous

but those are the only options i have it has to be there :(

- anonymous

one second I will get someone else to look over my results, but I have doubled checked it, and there are no mistakes.
@Thesmartone

- anonymous

@Thesmarterone need you to check my results

- anonymous

hes offfline

- anonymous

@Black_ninja123 @triciaal

- Black_ninja123

One sec let me check

- Black_ninja123

B is correct

- anonymous

What does B is correct mean?

- Black_ninja123

B is the right answer

- anonymous

Solution please

- anonymous

yea can u prove it ?

- Black_ninja123

\[d=(A.B)=\sqrt{x2-x1^{2}+y2-y1^{2}}\]
This is the formula

- anonymous

wait @HelpOfTheGods

- anonymous

ok yea i seen that formula in my lesson so im thinking thats prob right since i have 0 clue lol

- Black_ninja123

\[\sqrt{-2 - 4^{2}+-4-3^{2}}\]

- anonymous

@Black_ninja123 chose the points in reverse

- Black_ninja123

\[\sqrt{36+49}\]

- Black_ninja123

\[\sqrt{85}\]

- Black_ninja123

Square root of 85 is 9.22

- anonymous

was anything I did @Black_ninja123 incorrect?

- Black_ninja123

you said -2^2 is 4 but its actually -4

- anonymous

are you joking me? -2 x -2 = 4 not -4!

- Black_ninja123

Use the calculator and its gonna tell you -4

- anonymous

I appreciate your help on this one @Black_ninja123

- anonymous

I entered (-2)x (-2) and it still gives me +4

- Black_ninja123

enter -2^2

- anonymous

still +4

- Black_ninja123

ok

- anonymous

I can change the rules of arithmetic for integers if you like

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