Question

Find the distance between (-1,4) and (1,-1)

Answer 1

`d=√(29)`

Explanation:

The trick here is knowing the distance formula:

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

using that equation with (-1,4) and (1,-1), we get:

`d=√((1-(-1))^2+((-1)-4)^2)\\d=√((1+1)^2+(-1-4)^2)\\d=√((2)^2+(-5)^2)\\d=√(4+25)\\d=√(29)\\`