Question

Integral help:

Answer 1

http://prntscr.com/3f18sv

Answer 2

\(f(x)=\sqrt{x}\) is strictly increasing right?

Answer 3

Right.

Answer 4

so on the interval \([4,16]\) what is its minimum value?

Answer 5

10?

Answer 6

??

Answer 7

it is increasing
the minimum is at the left endpoint, the maximum at the right

Answer 8

oooh i see
you were including the 5, i was ignoring it
yes, 10 is right, i mentally pulled the 5 out of the integral
but if you mean the min of \(5\sqrt{x}\) then 10 is right

Answer 9

similarly the max will be \(20\)
use those numbers
i forgot the 5, sorry

Answer 10

I tried both, didn't accept either.

Answer 11

\[\int_4^{16} 5dx=12\times 5=60\] for the left

Answer 12

the right is \(12\times 20\)

Answer 13

Oh, I see, thank you :)