## anonymous one year ago .

1. haleyelizabeth2017

Well, to begin with, do you know the distance formula?

2. haleyelizabeth2017

Okay. So set the distance formula up to where it equals $$\sqrt{73}$$ Okay?

3. haleyelizabeth2017

Then plug in our points (n will be x1) and once you get there, show me :)

4. haleyelizabeth2017

its the distance formula....there is x1, y1, x2 and y2 that you need to plug in...I'll just show you lol

5. haleyelizabeth2017

yes

6. haleyelizabeth2017

Oops....then, square both sides to cancel the sqrts $(\sqrt73)^2=(\sqrt{((-3)-(n))^2+((11)-(8))^2}~~)^2$ $73=(-3-n)^2+(11-8)^2$ $73=(-3-n)^2+(3)^2$ $73=(-3-n)^2+9$ You got an idea of what to do next?

7. haleyelizabeth2017

Okay, that's perfectly fine :P

8. haleyelizabeth2017

$73=(-3-n)^2+9$ so we have this ^^ and we need to be able to get n isolated. So we need to subtract 9 from both sides and then square root both sides. $\sqrt{64}=\sqrt{(-3-n)^2}$ $8=-3-n$ $n+8=-3$ $n=-11$

9. haleyelizabeth2017

you're welcome!