> At 04:14 PM 6/19/2015, Jonathan Crabtree wrote: > >The applet below may be of interest to geometry > teachers. > >http://tube.geogebra.org/m/1163333 > > Without explanation/derivation of that unusually > coordinated y-axis, > it falls in the math avoidance category. With it, no > problem.
Thank you Wayne. I have now included a comment about the re-scaling of the y axis to 'flatten' the shape of the parabola and thus depict products up to 100 on a computer screen.