Answer:
1. Positive
2. Negative
3. Zero
4. Undefined
5. Positive
6. Negative
Explanation:
1 is positive because as the x increases the y increases. 2 is negative because as the x increases the y DECREASES. 3 is zero because as the x increases the y stays the same so it is a zero slope. 4 is undefined because as the y increases the x stays the same. 5 is positive and has the same reason for number 1. 6 is negative and has the same reason as number 2. Thanks!