Question 1
Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.
f(x) = 0.2x
3 + 0.3x
2 - 0.5x - 1; interval [2, 5]; 3 subintervals
◦ 49.2
◦ 50.0
◦ 30.0
◦ 21.0
Question 2
Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.
f(x) = 0.2x
3 + 0.3x
2 - 0.5x + 10; interval [-4, -1]; 3 subintervals
◦ 30.0
◦ 34.0
◦ 6.0
◦ 23.4