Question

Giselle pays $220 in advance on her account at the athletic club. Each time she uses the club,
$15 is deducted from the account. Write a linear function to model the situation. Define what
each of your variables represents.​

Answer 1

Answer:

$y=220-15x$

Step-by-step explanation:

Let x represent the number of times Giselle uses the athletic club and y represent money left in account.

We have been given that each time she uses the club,  $15 is deducted from the account. The amount used after using the club after x times would be $15x$.

We are also told that Giselle pays $220 in advance on her account at the athletic club.

The money left in account after x uses of athletic club would be money in account initially minus amount used for using the club x times.

$y=220-15x$

Therefore, our required equation would be $y=220-15x$.