The graphs of the equations
Show that the area of this region is
Hint: Use horizontal rectangles.
Since we are using horizontal rectangles, the infinitely small widths of each rectangle are measured on the
Notice that BOTH equations are written with
Therefore, find the bounds of integration will be on the
The 'top function' and 'bottom function' will also be determined with respect to the
Let the 'top function' be the one with the right-most position, while the 'bottom function' will be the one with the 'left-most position.'
Another way to look at this is the 'top function' has the highest