Question

What is the area (in square units) of the region under the curve of the function
f(x) = 4x + 1 on the interval [0, 3]?

16

17

19

21

Answer 1

Is this for a calculus class?

Answer 2

you already know

Answer 3

curve

Answer 4

I mean are you supposed to be using calculus to solve these or just geometry?

Answer 5

probably both

Answer 6

we have to compute this integral:
\[\Large \int_0^3 {\left( {4x + 1} \right)dx} = ...?\]

Answer 7

21

Answer 8

that's right!

Answer 9

another method is:

Answer 10

what is the area of that trapezoid?

Answer 11

ugh 21?

Answer 12

yes!

Answer 13

thx

Answer 14

thanks!

Answer 15

for what?

Answer 16

lol

Answer 17

in the sense of thanksgiving of your appreciation for my work!

Answer 18

yea you are appreciated

Answer 19

:)