Answer:
3.)equal differences over equal intervals
Step-by-step explanation:
A linear function has a constant rate of change.
A rate of change is the difference in the dependent variable for every change in the independent variable.
This means it has equal differences over equal intervals.
Answer:23
Associative property
y = 9x + (-7) should be the answer
12 years
20-8=12
Micheal's babysitter is 12 years older than Micheal.