Find the other endpoint of the line segment with the given endpoint and midpoint Endpoint 1: (-9,8)
Midpoint: (2,-1)
Endpoint 2= (.)

(13, - 10 )

Step-by-step explanation:

Given the endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

[ (x₁ + x₂ ), (y₁ + y₂ ) ]

let endpoint 2 = (x, y ), then equate to the coordinates of midpoint, that is

(- 9 + x ) = 2 ( multiply both sides by 2 )

- 9 + x = 4 ( add 9 to both sides )

x = 13

(8 + y) = - 1 ( multiply both sides by 2 )

8 + y = - 2 ( subtract 8 from both sides )

y = - 10 )

endpoint 2 = (13, - 10 )

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

360/29

step-by-step explanation: