Algebra House
  • Ask a Question
    • Answered Questions
  • Examples
  • State Test Practice
    • Algebra 1 State Test Practice
    • Geometry State Test Practice
  • ACT and SAT
  • Calculators
    • Problem Solver
    • Graphing Calculator
    • 3D Graphing Calculator
  • Contact
    • Contact Algebra House
    • Leave a Tip


​Answered Questions

Find the coordinates of the other endpoint

3/15/2021

0 Comments

 
Point​ A is located at (-1,-5). The midpoint of ​line segment AB is point C (2,3).

What are the coordinates of point B?

The x-coordinate of the midpoint is found by adding the x-coordinates of the endpoints
together, and dividing by 2.

(-1,-5) is the given endpoint and (2,3) is the midpoint
2 = (-1 + x)/2  
4 = -1 + x   {multiplied each side by 2}
x = 5  {added 1 to each side}
5 is the x-coordinate of the other endpoint


The y-coordinate of the midpoint is found by adding the y-coordinates of the endpoints
together, and dividing by 2.

(-1,-5) is the given endpoint and (2,3) is the midpoint
3 = (-5 + y)/2
6 = -5 + y   {multiplied each side by 2}
y = 11   {added 5 to each side}
11 is the y-coordinate of the other endpoint

The other endpoint is (5,11)

Ask the House

0 Comments

Your comment will be posted after it is approved.


Leave a Reply.

    Ask a Question
    Leave a Tip
    Latest Video
    Picture

    Archives

    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020

Algebra House
  • Ask a Question
    • Answered Questions
  • Examples
  • State Test Practice
    • Algebra 1 State Test Practice
    • Geometry State Test Practice
  • ACT and SAT
  • Calculators
    • Problem Solver
    • Graphing Calculator
    • 3D Graphing Calculator
  • Contact
    • Contact Algebra House
    • Leave a Tip