Final answer:
The rate at which oil is pumped from well A is given by the equation y=2.75. The graph represents the rate of oil pumped from well B. The information provided does not allow us to determine which well pumped oil at a faster rate.
Step-by-step explanation:
The equation y=2.75 represents the rate, in barrels per hour, that oil is pumped from well A. The graph represents the rate that oil is pumped from well B. To determine which well pumped oil at a faster rate, we need to analyze the given information. Since the equation y=2.75 represents a constant rate, we can conclude that well A pumped oil at a constant rate of 2.75 barrels per hour. Without any specific information about the rates on the graph for well B, we cannot determine if well B pumped oil at a faster rate than well A. Therefore, the answer is D) Cannot be determined from the information provided.