Answer:
Linear: you start with $3 and save $1 each month
Quadratic: Your total savings is 3 times the number of months multiplied by itself.
Exponential: You save $3 the first month then each month the amount triples
Step-by-step explanation:
Linear: you start with $3 and save $1 each month
As you see in the equation, it's a simple equation and you start with $3 then it increases $1 per month. You can see on the graph it's a straight line.
Quadratic: Your total savings is 3 times the number of months multiplied by itself.
The answer for this one is more obvious if you look at the equation... 3 times the number months (x) multiplied by itself (so x²)
Exponential: You save $3 the first month then each month the amount triples
For the amount to triple every month, it has to be multiplied by 3 (like 3x) or used a an exponent of the number 3, like in this case.