Question

Giselle pays $210 in advance on her account at the athletic club. Each time she uses the club, $15 is deducted from the account. Model the situation with a linear function.

A. b = 210 - 15x

B. b = 210 + 15x

C. b = 195 - 15x

D. b = 195 + 15x

Answer 1

im not sure but im really pretty ure it is a 

Answer 2

The correct answer is A

Explanation:

Here we start from the fact that there is a credit of 210, and each time she uses the club $15 will be deducted. if we take the x variable as the number of times she uses the club we have that the remaining credit is:

`b=intitalCredit-x(value)\\b=210-15x`