Answer:
or 
Step-by-step explanation:
The slope refers to the gradient of the line.
There is a formula to find the gradient of a line where m is the gradient:

So, we will take two points on the line.
Let's take our first point as (-3, 1) and our second as (7, 3).
Let's work with the
values.
The first
value is 1 and the second
value is 3.
So, in the numerator, they would look like
.
Let's work with the
values.
The first
value is -3 and the second
value is 7.
So, in the denominator, this would look like
.
Let's use these in the fraction and work out our answer:

Therefore, our final answer is
or
.