901bran
901bran 901bran
  • 10-05-2020
  • Mathematics
contestada

The midpoint of AB is M(3,-1).If the coordinates of A are (8,4) what are the coordinates of B

Respuesta :

chudung1976
chudung1976 chudung1976
  • 10-05-2020

Answer:

B(-2,-6)

Step-by-step explanation:

The midpoint of AB is M, then A(8,4), M(3,-1)

So we can find:

[tex]x_{B} =2x_{M} -x_{A}= 2*3-8= -2\\y_{B}= 2y_{M} -y_{A} = 2*(-1)- 4= -6\\[/tex]

then B(-2,-6), hope that useful.

Answer Link

Otras preguntas

A punter kicks a football upward with an initial speed of 48 feet per second. After how many seconds does the ball hit the ground? Use the formula h = rt − 16t
4 ft and 7 inches girl and 5 ft and 8 inches how tall thier child will be
If you spend 8.50 for lunch on Monday 3.95 on Tuesday and 11.15 on Friday how much have you spent for lunch this week
Which battle did the duke of wellington defeat napoleon?
Framing painting 55cm by 82 cm how many cm are needed
need some assistance. (-34)+-24 I give alot of points for effort
Read this excerpt from "Just One in Four Young Teens Meet US Fitness Guidelines" by Lindsey Tanner and answer the question that follows: Young teens aren't ex
Geometry math question no Guessing
Crystal works 6 hours three days a week and 7 hours two days a week. She earns $472 per week. What is her hourly rate of pay?
ANSWER PLZ QUICK AND FAST