Find the equation if the generating curve, y=2x+1 is revolved about the y axis. How do we do this?
Follow Math Help Forum on Facebook and Google+
Focus on a single point (x, 2x + 1). When you revolve this point around the y-axis, it forms a circle. What is the radius of that circle? What coordinate plane is the circle parallel to? Therefore, what is the equation of that circle?
View Tag Cloud