Answer:

Explanation:
For this, we shall use the slope formula:
← this is

Assuming this is a line, all we do is pick two consecutive points and plug them in. For example, let's take the first two points. (1, -4) and (7, 5) as they are the easiest to work with.
Let's plug in these two values:

Simplified we get:

We are now able to factor 3 out of the numerator and denominator:

Thus resulting in the slope.