The rate of change in a linear function like you have is where
Can you see how in your case?
For dogs that are two or more years old, the equation compares dog year to human years. In the equation, represents the acutal age of a dog, and in the age of the dog in human years.
What rate of change does the slope represent?
Testbook answer: 5 dog years for every human year.
I don't why though? Can anyone help me out? Thanks.