Answer:
Zero
Step-by-step explanation:
Slope is:

Since there is no change of the y value, there is no slope.
Answer:
Step-by-step explanation:
The manager visits a park and interviews people who are waiting to use the tennis courts.
Well the answer is -2y-4 but the different terms in this problem are 4 and 5y and 3y where 5y and 3y are like terms