1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
noname [10]
3 years ago
13

How to find third coordinate when given midpoint and a point?

Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0
Example : 
u have an endpoint at (6,5)......ad the midpoint is (4,2)....find the other endpoint.

midpoint formula : (x1 + x2) / 2, (y1 + y2) / 2
one endpoint (6,5)....x1 = 6 and y1 = 5
other endpoint (x,y)...x2 = x and y2 = y
sub into the formula
m = (6 + x) / 2, (5 + y) / 2

okay, so the midpoint is (4,2)....so ur x value will equal 4
(6 + x) / 2 = 4...multiply both sides by 2
6 + x = 4 * 2
6 + x = 8
x = 8 - 6
x = 2 <==

midpoint is (4,2)....so the y value will equal 2
(5 + y) / 2 = 2 ...multiply both sides by 2
5 + y = 2 * 2
5 + y = 4
y = 4 - 5
y = -1 <==

so ur other endpoints are (2,-1)
You might be interested in
Need Help With Classifying Shapes. Simple High School Geometry But I was absent the day we went over it. Thanks!
liraira [26]
Quadrilateral RICE is a rectangle because the lengths of the quadrilateral have 2 sides congruent to each other. Also, RICE has slopes with opposite fractions which make the sides parallel to each other.
8 0
3 years ago
Pls help ill mark brainliest
JulsSmile [24]

Answer:

mhm thats great points man pointsssss idc

5 0
2 years ago
Read 2 more answers
Find a ordered pair for this equation please for x and y
vampirchik [111]
<h3 /><h3>4x - y = 8 \\ 4(3) - 4 = 8 \\ 12 - 4 = 8 \\ 8 = 8</h3><h3>4 and 3 are answers</h3>
8 0
2 years ago
Read 2 more answers
Darcy uses place value blocks to show a number. She uses 4 thousand blocks and five hundereds blocks. What is the number? How ca
Maksim231197 [3]
Answer is 4,500. 4 1,000 blocks =4,000. 5x100 =500. 4,000 + 500 = 4,500.
4 0
3 years ago
Can someone help me in 3 pls
In-s [12.5K]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • The coordinates of a triangle are given as A(3, 2), B(-4, 1), C(-3, -2). What are the coordinates of the image after the triangl
    7·2 answers
  • Just one math question i'll mark brainliest :)
    11·1 answer
  • The population of the world was about 5.3 billion in 1990. Birth rates in the 1990s range from 35 to 40 million per year and dea
    12·1 answer
  • Write the standard form of the quadratic equation modeled by the points shown in the table below.
    7·2 answers
  • A rectangular prism has a length of 8 in., a width of 4 in., and a height of 2 1/4 in. The prism is filled with cubes that have
    15·1 answer
  • How can you decompose the composite figure to determine its area?
    12·1 answer
  • Write the number seven hundred fifty one with digits
    8·2 answers
  • Chloe is 5 feet 4 inches tall. There are 2.54 centimeters in 1 inch. What is Chloe’s height in centimeters
    7·2 answers
  • Which statements are true? Check all that apply.
    10·2 answers
  • If X and Y are 2 finite sets such that n() = 9, n( XY) - 4 and n( XY) -15, then n() is
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!