Answer:
I want to say B or D please tell me if I'm right lol
Age is the independent variable
Answer:

Step-by-step explanation:
Because the coordinates for x = 0 is (0,-2) so that's your y- intercept.
Then if you all you have to do is make sure that you have the correct slope.
So i just made a table on paper and started going up and seeing what slope i'd need to match the table on the screen.

Answer:
Repeats itself
Has a minimum or maximum
Multiplying by the same number
Step-by-step explanation: