Answer:
zero
Step-by-step explanation:
This flat horizontal line is Y=1 has a slope (rate of change) of zero.
Answer:
Step-by-step explanation:
For Mr Rowley,
Ratio of Number of home works to the number of exit tickets =
= 
= 6:7
For Ms Rivera,
Ratio of Number of home works to the number of exit tickets = 
= 
= 6:7
Since, both the ratios are same, fractions will be proportional.

No, because it has a constant rate of change