The graph shows the number of gallons in a wading pool that is being drained using the points (1,160) and (3,80) as (pie 1, y1) what is the rate of change in the number of gallons in the pool after each hour has passed
To find the rate of change in the number of gallons in the pool after each hour has passed, we need to determine the slope of the line that connects the two given points (1, 160) and (3, 80).
Using the slope formula:
slope = (y2 - y1) / (x2 - x1)
Using the points (1, 160) and (3, 80):
slope = (80 - 160) / (3 - 1)
slope = -80 / 2
slope = -40
Therefore, the rate of change in the number of gallons in the pool after each hour has passed is -40 gallons per hour.