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Mathematics 14 Online
OpenStudy (anonymous):

Find the distance between the two points

OpenStudy (anonymous):

OpenStudy (anonymous):

Do you know a^2 + b^2 = c^2?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

what will that do? cant i just use the distance formula?

OpenStudy (anonymous):

What's the distance formula? Maybe you can but if you can it is probably the same thing.

OpenStudy (anonymous):

ok show me how u would do it the other way please!!

OpenStudy (anonymous):

Well, you figure out what a is and b is and then substitute them into the equation and solve for c. Sorry, I expected you to reply with the distance formula. Which is probably about speed and time, I'd guess.|dw:1348534137159:dw|

OpenStudy (anonymous):

the distance formula is sqr((x2-x1)^2+(y2-y1)^2 = distance

OpenStudy (anonymous):

That is the same!

OpenStudy (anonymous):

but i plugged in the points and am not getting the right answer...

OpenStudy (anonymous):

OK, this should work, what are the values you are using for x1, x2, y1 and y2?

OpenStudy (anonymous):

(-1,2) and (7,8)

OpenStudy (anonymous):

Ah, that may be it. The points are (-1. 5) and (7, -1).

OpenStudy (anonymous):

Say the upper left point is (x1, y1) and the lower right point is (x2, y2).

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