200k views
5 votes
PLS HELP I REALLY NEED HELP

PLS HELP I REALLY NEED HELP-example-1
User Jtcruthers
by
6.0k points

2 Answers

6 votes

Answer:

Length of line segment AB = 10 units

Midpoint of line segment AB = (2, 6)

Explanation:

To find length, apply the distance formula :

  • AB = √(5 - (-1))² + (2 - 10)²
  • AB = √36 + 64 = √100

  • \fbox {AB = 10 units}

To find the midpoint :

  • M = (-1 + 5 / 2, 10 + 2 / 2)

  • \fbox {Midpoint = (2, 6)}
User Tomty
by
5.7k points
2 votes

Answer:

  • a) AB = 10 units
  • b) Midpoint is (2, 6)

===================

Given

  • Points A( - 1, 10) and B(5, 2)

To find

  • a) The length of AB
  • b) The midpoint of AB

Solution

a) Use the distance formula:


d = √((x_2-x_1)^2+(y_2-y_1)^2)

Substitute the coordinates and calculate:


d=√((5-(-1))^2+(2-10)^2) =√(6^2+(-8)^2) =√(36+64) =√(100) =10

The distance is AB = 10 units

b) Use midpoint formula and find x and y- coordinates of this point:


x= \cfrac{x_1+x_2}{2} and
y= \cfrac{y_1+y_2}{2}

Substitute coordinates and find the midpoint:


x= \cfrac{-1+5}{2} =2 and
y= \cfrac{10+2}{2}=6

The midpoint is (2, 6)

User Tom McDonough
by
5.2k points