Answer:
0
Step-by-step explanation:
Well, since the line has the same y coordinates, you know it's a horizontal line.
All slopes of horizontal lines are 0.
Answer:
18
Step-by-step explanation:
1/2bh
9 x 4 = 36
36/2 = 18
area = 18
Answer:
C) (8,12)
Step-by-step explanation:

Answer:
C. From week 3 to week 4
Step-by-step explanation:
The reason it has the greatest amount of change is because its slope is the steepest.
Answer:
1
Step-by-step explanation:
y2-y1/(x2-x1)
-5--13/1--7
8/8
Slope is 1