Question: MapleGraph

I am stock on this my prof gave me an equation to draw on maple 16x^2=y^2+4z^2 and this is the code i keyed in restart: with(plots): > p1:=implicitplot3d(16*x^2=y^2+4*z^2,x=-100..100,y=-100..100,z=-100..100,numpoints=2000,style=wireframe): > display(p1); and the graph suppose to be a cone rotating around the x-axis but i don't know wut i did wrong, i just couldn't get the graph look like a cone, instead, it looks like a hyperboloid of two sheets, and the sheets are very close to each other Can someone help?? Thx
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