Question

Luciana is adding water to a pool at a constant rate. Before she added any water, the pool had $12,000$ gallons of water. Luciana is adding $9$ gallons of water each minute.

Which equation represents the total number of gallons of water in the pool, $w$ , after Luciana adds water for $m$ number of minutes?

Answer 1

T(m) = 12,000 gallons + (9 gallons/ minute)m

Explanation:

This is a linear function with beginning value 12,000 gallons and unit rate of increase 9 gallons/minute:

T(m) = 12,000 gallons + (9 gallons/ minute)m

PS: Please don't use " $ " to set off numbers. Not needed!