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Can someone explain to me how to do questions 6-8 because I understand how to do 3-5 now. Can you explain to me how you do this please ? I have a test tomorrow

Can someone explain to me how to do questions 68 because I understand how to do 35 now Can you explain to me how you do this please I have a test tomorrow class=

Respuesta :

Answer: 6. 4,2

              7. 3,2

              8. 5,2

please forgive me if i am incorrect.

Answer:

see explanation

Step-by-step explanation:

Using the midpoint formula to equate the x and y coordinates of the endpoints to the x and y coordinates of the midpoint, that is

(6)

let ( x, y ) be the coordinates of the required endpoint, then

x → [tex]\frac{x+6}{2}[/tex] = 2 ( multiply both sides by 2 )

  x + 6 = 4 ( subtract 6 from both sides )

x = - 2 and

y → [tex]\frac{y+2}{2}[/tex] = 0 , thus

y + 2 = 0 ( subtract 2 from both sides )

y = - 2

Coordinates of the other endpoint = (- 2, - 2)

(7)

x → [tex]\frac{x-4}{2}[/tex] = - 1 ( multiply both sides by 2 )

x - 4 = - 2 ( add 4 to both sides )

x = 2 and

y→ [tex]\frac{y+3}{2}[/tex] = - 1 ( multiply both sides by 2 )

y + 3 = - 2 ( subtract 3 from both sides )

y = - 5

Coordinates of the other endpoint = (2, - 5)

(8)

x → [tex]\frac{x+7}{2}[/tex] = 2 ( multiply both sides by 2 )

x + 7 = 4 ( subtract 7 from both sides )

x = - 3 and

y → [tex]\frac{y+3}{2}[/tex] = 1 ( multiply both sides by 2 )

y + 3 = 2 ( subtract 3 from both sides )

y = - 1

Coordinates of the other endpoint = (- 3, - 1)