Answer:
3
Step-by-step explanation:
13-4=9
9/3=3
The answer is D. I graphed it on this website called desmos. The solution is where the lines intersect.
Yes it can be !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Coordinates of other end point L = ( -19, 13 )
Explanation:
The mid point of the coordinates (a,b) and (c,d) is given by 
Here we have (a,b) = (1,-7) and
= (-9,3) , we need to find (c,d).

So coordinates of other end point L = ( -19, 13 )