Question

How many units apart are the points (4, -3) and (-4, 3)?

Answer 1

to find the distance (or units) apart between two points \[(x_1,y_1) and (x_2,y_2)\]
\[D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\]

Answer 2

D is the Distance apart between the two points...

Answer 3

what do you get if you use the formula??

Answer 4

um.. so far 0+-8. Am I wrong?

Answer 5

yes...

Answer 6

T-T I suck at this...

Answer 7

i think the mistake is from.....
x(2)-x(1)
so it is supposed to be (4-(-4))^2

Answer 8

Oh I think I understand...

Answer 9

-16?

Answer 10

no..its supposed to be 64 for (4-(-4))^2

Answer 11

do you understand why??

Answer 12

4-(-4)=4+4=8
and therefore 8^2=64

Answer 13

oh. Thank you very much lol I feel dumb

Answer 14

so what do you get when you find the distance??

Answer 15

Let d be the distance between the points.Then
\[d=\sqrt{\left( -4-4 \right)^{2}+\left( 3+3 \right)^{2}}\]
\[d=\sqrt{64+36}=\sqrt{100}=10\]