Question

this graph shows the water level as a bathtub is filled. how many inches does the water level in the bathtub increase by every 1 minute? enter your answer in the box. \boxed{} in.

Explanation:

Step1: Identify coordinates from graph

From the graph, at \( t = 4 \) minutes, water level \( y = 12 \) inches (assuming the point is (4,12)).

Step2: Calculate rate of change

The rate of change (slope) is \( \frac{\text{Change in } y}{\text{Change in } t} \). So, \( \frac{12 - 0}{4 - 0} = \frac{12}{4} = 3 \).

Answer:

3