Ok so I have the two coordinates (0,3) and (2,7)
The line that runs through them is y=2x+3
How do I find the volume created by rotating the line around the x axis..
In other words, I will be using volumes of revolution.
However, I have only bee taught on this how to just find the volume of a straight line only using one coordinate. Would it work the same or would I need to use both coordinates? Would the limits be from 0 to 7? and then intergrating 4x^2+12x+9 and multiplying it by pie?
Many thanks to those who reply