Answer:
The slopes of line segments AC and AD are same or constant i.e 
Step-by-step explanation:
We need to find slopes of AC and AD and tell if they are same or not.
The formula used to calculate slope is: 
Finding slope of AC
We have A=(3,2) and C=(0,1)
Finding slope using formula:
We have 

So, Slope of AC is 
Finding slope of AD
We have A=(3,2) and C=(9,4)
Finding slope using formula:
We have 

So, Slope of AD is 
So, the slopes of line segments AC and AD are same or constant i.e 