Question

Find the length of RS with endpoints R(4,5) and S(-1, – 4).

Answer 1

`d=√(106)`

Explanation:

Distance Formula:
`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

Simply plug in your 2 coordinates into the distance formula to find distance d:

`d=√((-1-4)^2+(-4-5)^2)`

`d=√((-5)^2+(-9)^2)`

`d=√(25+81)`

`d=√(106)`