## abymartinez15 one year ago Determine the length and midpoint of the segment whose endpoints are (–15, 9) and (–4, 11). A. length = 11.18, midpoint = (–5.5, 1) B. length = 11.18, midpoint = (–9.5, 10) C. length = 26.17, midpoint = (–5.5, 1) D. length = 26.17, midpoint = (–9.5, 10)

1. freckles

midpoint just find the average of the x values and the average of the y values the average of two numbers can be found by adding those numbers and dividing by 2 (you know since there are two numbers)

2. freckles

for example the average of the x's is given by (-15+(-4))/2

3. freckles

the length between the endpoints can be found by using the distance formula

4. freckles

$d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

5. abymartinez15

So after i finish solving for the formula I can get my answer or I have to do more?

6. freckles

the thing called d will give you the length when pluggin in the points the average of the x's and the average of the y's will give you the midpoint

7. freckles

that is what your question ask to find is the midpoint and the length between the endpoints

8. abymartinez15

ok thank you :D