Answer:
The function is
![y=20+10x.](https://img.qammunity.org/2021/formulas/mathematics/high-school/vkz391y8ydrnbsv36tj3rp46zk0a85xswt.png)
Explanation:
Given:
A student is saving money to buy a video game. The student currently has $20 and plans to save $10 every month.
Now, to write a function that represents the amount y (in dollars) of money that the student saves after x months.
The total amount of money student saves =
![\$y.](https://img.qammunity.org/2021/formulas/mathematics/high-school/b1umzt5dskyicrecqtq195ac79h2tnt8wy.png)
The number of months students saves =
![x.](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mmi228653dkvma4dszwy75q6dvkduzr4zg.png)
As given, the student currently has $20 and plans to save $10 every month.
So, to get the function that represents the amount of money that the student saves after months:
![y=20+10x.](https://img.qammunity.org/2021/formulas/mathematics/high-school/vkz391y8ydrnbsv36tj3rp46zk0a85xswt.png)
Therefore, the function is
![y=20+10x.](https://img.qammunity.org/2021/formulas/mathematics/high-school/vkz391y8ydrnbsv36tj3rp46zk0a85xswt.png)