Question

giselle pays $190 in advance on her account at the athletic club. each time she uses the club, $10 is deducted from the account. model the situation with a linear function. a. b = 190 10x b. b = 180 10x c. b = 180 – 10x d. b = 190 – 10x

Answer 1

I think 190-10x is the answer. He/she pays $190 so let X be the number of time he/she uses the club. so 190-10x is the answer.

Answer 2

For this case, the first thing we must do is define variables.

We have then:

x: number of times Giselle uses the athletic club

b: amount of money remaining

We write a linear equation of the form:

b = mx + c

Where,

m: slope of the line that represents the cost for each time she uses the athletic club

c: initial amount that Giselle paid

Substituting values we have:

b = -10x + 190

Answer:

a linear function that model the situation is:

d. b = 190 - 10x