Evaluate the integral by interpreting it in terms of areas.

int_(0)^(9) (7/2x - 21)dx

can someone please help me with this question i keep on getting the wrong answer...the answer i got was -324/4

2 answers

The integral is (7/4 x^2-21x) evaluated from zero to 9 is 7*81/4-21(9) How did you get your answer?
so the answer is 567/-185