Question

Explain the distance formula. Then use it to calculate the distance between A(1,1) and B(7,-7).

Answer 1

d=10

Explanation:

Answer 2

the distance formula:

`d= \sqrt{ (x_(2) - x_(1)) ^(2)+ (y_(2) -y_(1)) ^(2) }`


A(1,1) B(7,-7)


`d= \sqrt{ (7 - 1) ^(2)+ (-7 -1) ^(2) }`


`d= \sqrt{ (6) ^(2)+ (-8) ^(2) }`


`d= √( 36 + 64 )`


`d= √( 100 )`


`d=10`


The answer is 10