Answer:
The gradient of the line segment between the points (1,-1) and (3,-13) is -6
Step-by-step explanation:
We need to find the gradient of the line segment between the points (1,-1) and (3,-13)
The gradient is basically the slope of line.
The formula used to calculate slope\gradient is: 
We have 
Putting values and finding slope

So, gradient of the line segment between the points (1,-1) and (3,-13) is -6