To find the rate of change, we can use the formula:
Rate of change = (y2 - y1) / (x2 - x1)
Plugging in the values:
Rate of change = (80 - 160) / (3 - 1)
Rate of change = (-80) / 2
Rate of change = -40
Therefore, the rate of change in the number of gallons in the pool after each hour has passed is -40 gallons per hour.
The graph shows the number of gallons in a wading pool that is being drained. Using the points (1,160) and (3,80) as (x1,y1) and (x2,y2) , what is the rate of change in the number of gallons in the pool after each hour has passed?
(1 point)
1 answer