Question

One question. Find the distance between coordinates.

Answer 1

We can either make this a triangle...or just use the distance formula...

\[\large \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\]

plug in those numbers... (-3,4) and (-7 , -1)

We have

\[\large \sqrt{(-3 - (-7))^2 + (4 - (-1))^2}\]
\[\large \sqrt{(-3 +7)^2 + (4 + 1))^2}\]
\[\large \sqrt{(4)^2 + (5)^2}\]
\[\large \sqrt{16 + 25}\]
\[\large \sqrt{41} = \space?\]

Answer 2

6.4, thanks. I didn't even think of a triangle and just using Pythagorean Theorem.

Answer 3

No problem!