Answer/Step-by-step Explanation:
4. Midpoint (M) of AB, for A(-2, -3) and B(1, 2) is given as:

Let 

Thus:


5. Given M(3, 5) as midpoint of CD, and C(-1, -1),
let 


Rewrite the equation to find the coordinates of D
and 
Solve for each:












Coordinates of D is (7, 11)
Answer:
2
Step-by-step explanation:
7.9-5.9= 2.0 the answer would be 2
y = -4x - 1
the gradient of the parallel line will be the same as the given line so you just need to change the y intercept