Acone has a radius of r units and a height of h units. a cylinder has a ridius of 2r units and has the same volume as the cone. what is the height of the cylinder? write and explanation of how you got your answer.

you answer is a

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.