Answer:
<h2>This triangle is a right triangle:</h2><h2>36² + 15² = 39².</h2>
Step-by-step explanation:
If a ≤ b <c is the length of the sides of a right triangle, then:

We have

Check the equality:



It's a right triangle.
The formula of a slope:

We have the points (-2, 2) and (-4, -2). Substitute:

<h3>Answer: the slope = 2</h3>