It depends if you need to simplify it. If you dont than three. If you do than 2
Answer:
yes
Step-by-step explanation:
X equals 60 degrees (80-20=60)
Hello!
Find the coordinate where x = -1:
At x = -1, y = 1, so the coordinate is (-1, 1).
Find the coordinate where x = 2:
At x = 2, y = -2, so the coordinate is (2, -2).
Find the rate of change between the points using the slope formula:

Plug in the coordinates above:

Simplify:
Thus, the rate of change between the points is -1.
Whats the rest of the problem?