Respuesta :
"y" is the amount left
"x" is the number of days
30,000 is the starting point (b)
500 gallons taken away each day (m)
y = (m)(x) + (b)
y = -500x + 30,000
"x" is the number of days
30,000 is the starting point (b)
500 gallons taken away each day (m)
y = (m)(x) + (b)
y = -500x + 30,000