Question

The midpoint of CD Is M=(-3, 1). One endpoint is C=(-7, 7).
Find the coordinates of the other endpoint, D.

Answer 1

Answer:

Step-by-step explanation:

(x - 7)/2 = -3

x - 7 = -6

x = 1

(y + 1)/2 = 1

y + 1 = 2

y = 1

(1, 1)

Answer 2

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position. The coordinates of point D are (1, -5).

What are coordinates?

A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.

Let the coordinates of the point D be represented by D(a,b).

Given the Ratio from CM to DM is 1:1.

The internal division of the line segment using the ratios will be,

CM\MD = 1/1

C = D

(-7,7) = (a, b)

Now, the coordinates of M can be rewritten as,

$R = (\dfrac{-7+a}{1+1},\ \dfrac{7+b}{1+1}) = (-3,1)$

Comparing the coordinates,

(-7+a)/2 = -3

a = 1

(7+b)/2 = 1

b = -5

Hence, the coordinates of the point D are (1, -5).

Learn more about Coordinates:

https://brainly.com/question/23450276

#SPJ2