Answer:
13 units
Step-by-step explanation:
Rectangle ABCD has coordinates A(-1,-6), B(-1,7), C(1,7), D(1,-6)
We want to find the length of AB.
We use the absolute value method to find the length of AB.
Since the first coordinates are the same for A(-1,-6) and B(-1,7).
The distance is given by;
The length of AB is 13 units.