What is the Midpoint of CD given the coordinates C(-4,8) and D(8,-4)?

average x and average y

x = (-4+8)/2 = 2
y = (8-4)/2 = 2
so
(2,2)

1- D. PG and plane PQS

2- 15* because 7x15+7= 112
3- 2,2
4- 36 units

To find the midpoint of a line segment with given endpoints, you can use the midpoint formula. The midpoint formula states that the coordinates of the midpoint are the average of the corresponding coordinates of the endpoints.

Let's find the midpoint of CD using the given coordinates C(-4, 8) and D(8, -4).

1. The x-coordinate of the midpoint is the average of the x-coordinates of C and D.
x-coordinate of the midpoint = (x-coordinate of C + x-coordinate of D) / 2

x-coordinate of the midpoint = (-4 + 8) / 2 = 4 / 2 = 2

2. The y-coordinate of the midpoint is the average of the y-coordinates of C and D.
y-coordinate of the midpoint = (y-coordinate of C + y-coordinate of D) / 2

y-coordinate of the midpoint = (8 + (-4)) / 2 = 4 / 2 = 2

Therefore, the midpoint of CD is (2, 2).