- #1
kingwinner
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Consider the graph of z=xy.
Choose the section y=x, i.e. intersect the plane y=x with the graph z=xy, I get z=(x)(x)=x^2, with y=x. Now is this a parabola? (note that the curve actually lies on the plane y=x)
If so, why?
Also, is this parabola going to have exactly the same shape as the one parallel to the x-axis?(i.e. z=x^2, y=0)
How is the graph of z=xy going to look like?
I spent an hour thinking of these, but still can't figure it out...
Can someone please help me? I seem to be skewing up geometrically. I can't understand geometry like this...this is driving me crazy
Choose the section y=x, i.e. intersect the plane y=x with the graph z=xy, I get z=(x)(x)=x^2, with y=x. Now is this a parabola? (note that the curve actually lies on the plane y=x)
If so, why?
Also, is this parabola going to have exactly the same shape as the one parallel to the x-axis?(i.e. z=x^2, y=0)
How is the graph of z=xy going to look like?
I spent an hour thinking of these, but still can't figure it out...
Can someone please help me? I seem to be skewing up geometrically. I can't understand geometry like this...this is driving me crazy
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