Question

Explain the distance formula. Then use it for calculate the distance between A(1,1) and B(7,-7).
Can someone help?

Answer 1

do you know the distance formula?

Answer 2

no

Answer 3

\[\sqrt{(y2-y1)^2 + (x2-x1)^2}\]
Apply the data you have and you'll get your answer.

Answer 4

need any additional help?

Answer 5

yes

Answer 6

okay.
\[\sqrt{(y2-y1)^2 + (x2-x1)^2}\]

We have the coordinates (1,1) (7,-7) so just really plug them in the formula above.
\[\sqrt{(-7 - 1)^2 + (7 - 1)^2}\]
So the answer would be 10

Hope that helps

Answer 7

Thanks!