hi guys, i dont know where to place this integration question under, so i guess i'lljust place it here. I cant get the answer after many tries..

Find the area bounded by the given curves:

y=4-x square ; y=0, x=0, x=4

the answer given to me was 16. but I could only get -15.99 yes the ans I got is negative.

i solved by coming out with the table, and then integrate the equation by sub in the limit 4 and 0.

x 0 1 2 3 4

y 4 3 0 -5 -12

anyone help pls? thanks a lot! I have end of semester exam coming!