As you increase the subintervals the area will be closer and closer to the real value. In other words your approximation gets better.
As you increase the intervals, there will be more rectanagles and the added area of these rectangles are converging towards the actual area under the curve.
Answer:
X= -12 Y=10
Step-by-step explanation:
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Is the anser
The expression would be 32+3x where x represents the cost of each shirt. If the shirts were $9 each max would have spent $59