Question

Point E is located at (–2, 2) and point F is located at (4, –6). What is the distance between points E and F?
Multiple choice: square root of 52, square root of 28, square root of 20, and 10.
>_<

Answer 1

I honestly have no idea what the answer is, or how to work it :P

Answer 2

distance=\[\sqrt{(y2-y1)^2+(x2-x2)^2}\]

Answer 3

sorry x2-x1

Answer 4

lets make point e (x1,y1) and point f (x2,y2)

Answer 5

\[d = \sqrt{(x _{2} - x _{1})^{2} + (y _{2} - y _{1})^{2} }\]

Here, \[x _{1} = -2\]\[y _{1} = 2\]\[x _{2} = 4\]\[y _{2} = -6\]

Substitute and solve for d.

Answer 6

oh! okay.

Answer 7

check with this after you finish
\[d=\sqrt{(-6-2)^2+(4+2)^2}\]
\[d=\sqrt{(-8)^2+(6)^2}\]
\[d=\sqrt{64+36}\]
\[d=\sqrt{100}\]
\[d=10\]

Answer 8

kk, thanks people :D