Define A(x) to be the area bounded by x and y axes, the line y=x+1, and the vertical line at x.
(a) Evaluate A(2) and A(3)
(b) What area would A(3) - A(1) represent?
Answers:
(a) A(2) = __________ square units A(3) = ______________ square units
(b) A(3) - A(1) = ______________ square units