Find the distance d(p1, p2) between the points p1, p2.
p1=(4,-4); p2=(5,1)

Question

hartnn · Answer

Distance between points (x1,y1) and (x2,y2) is 
$\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$
does this help ??

anonymous · Answer

I got square root of 26 so far.

anonymous · Answer

if I simplify that it goes into 2 * 13?

anonymous · Answer

is 2 square root of 13 the answer?

hartnn · Answer

sqrt 26 is the correct answer 
 u can't simplify that to  2 square root of 13

mimi_x3 · Answer

I think the formula should be $$\huge d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$$
or is it the same thing?

hartnn · Answer

same thing

anonymous · Answer

how come this answer I got right it was 2 square root of 17 
the problem was p1(4,-3) pr(2,5)

anonymous · Answer

it came out to be square root of 68 that couldn't be simplified right?

hartnn · Answer

yeah, $\huge \sqrt {68}= \sqrt {4*17}= \sqrt 4 \sqrt 17 =2\sqrt17$

anonymous · Answer

oh ok I see

anonymous · Answer

thanks

hartnn · Answer

welcomes ^_^