overall accuracy: 86.7% record: 34 score: 33 a left riemann sum is an overestimate when the function is…

overall accuracy: 86.7% record: 34 score: 33 a left riemann sum is an overestimate when the function is concave down increasing decreasing concave up high score board: overall refresh you must have at least 100 to be on the board. # name record

overall accuracy: 86.7% record: 34 score: 33 a left riemann sum is an overestimate when the function is concave down increasing decreasing concave up high score board: overall refresh you must have at least 100 to be on the board. # name record

Answer

Brief Explanations:

A left - Riemann sum uses the left - hand endpoint of each sub - interval to calculate the area of the rectangles for approximating the definite integral. When a function is decreasing, the value of the function at the left - hand endpoint of each sub - interval is larger than the values of the function on the rest of the sub - interval. So, the sum of the areas of the rectangles in a left - Riemann sum will be larger than the actual area under the curve, making it an overestimate.

Answer:

C. decreasing