Question

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Answer 1

i got 68

Answer 2

did you forget to divide by 2

do the actual integral to get a good steer

Answer 3

ohh so 34?

Answer 4

this is what i did: 2(f(1)+f(2)+f(3)) = 2(15+12+7) = 68

Answer 5

why do you have the base length is 2?

Answer 6

what happens when you divide the interval from x=0 to x=3 into 3 sub-intervals of equal length?

Answer 7

how long are each of the sub-intervals?

Answer 8

Δx=3−0/3=1

Δx(f(0)+f(1)+f(2))

1(16+15+12)=43

Answer 9

yes that is an upper approximation to the area
you could also get a lower approximation to the area if you used your earlier sum times 1

that is
lower sum= 1(15+12+7)
upper sum=1(16+15+12)

Answer 10

oh ok so it is 34 bc i need lower

Answer 11

Thanky ou!!!