Answer:
6ft by 15ft
Step-by-step explanation:
just divide each number by two and add it to the origanal number.
Step 1: Find the slope:

Step 2: Set up your equation
using one of the points.
Using (5,6) we have
.
Using (6,10) we have 
Both of those equations would be correct.
Answer: -3
Step-by-step explanation: