Question

M(-5, 2) and N(5, 2) are the endpoints of the segment MN on the coordinate plane. What is the length of MN¯¯¯¯¯¯ ?

Answer 1

Use the distance formula


`√((2-2)^2+(5--5)^2)=√(100)=10`

Answer 2

length of MN is 10

Explanation:

M(-5, 2) and N(5, 2) are the endpoints of the segment MN

To find the length MN we use distance formula

`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

M(-5, 2) is (x1,y1)

N(5, 2) is (x2,y2)

Plug in the values and find out the distance

`d=√((5-(-5))^2+(2-2)^2)`

`d=√((5+5)^2+(2-2)^2)`

`d=√((10)^2+(0)^2)`

`d=√(100)=10`

So length of MN is 10