I guess its 3.5x (edited) .....
Y = 2x + 1
y = 2x - 1
so the 1st one has a y int of 1 and the second one has a y int of -1...so the original line will shift down 2 units
Compute the area of the shaded region: f’(x)=x-1/x
the answer choices are:
A. 41-ln 1/9
The kilogram because its heavier!