Hi, the question is in the attachement below.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t