Which graph represents the function

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.

Based on the figures as marked, /\rqs = —

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table