Original post by TenOfThem
It is a function if you state the domain x not = 0
It is not a continuous function
It is not a continuous function
Where isn't it continuous?
http://www.google.com/imgres?q=1/x&um=1&hl=en&client=safari&sa=N&rls=en&biw=1005&bih=886&tbm=isch&tbnid=cupNYfLfV26bOM:&imgrefurl=http://www.mathsrevision.net/alevel/pages.php%3Fpage%3D13&docid=bYpACciWIHrEbM&imgurl=http://www.mathsrevision.net/alevel/pure/1overx.gif&w=428&h=317&ei=KaOiTqm9OouT8gP94rDaBQ&zoom=1
If you look at this graph, you will see the function 1/x. As the x value gets bigger the y value gets smaller, for example:
1/X=Y
1/1=1
1/10=0.1
1/100=0.01
and so on...
And when X value gets smaller the y value gets bigger:
1/X=Y
1/0.1=10
1/0.01=100
1/0.001=1000
and so on..
When x=0 y=infinity, so it cannot be defined because the number is so big. But it still is a function.
If you look at this graph, you will see the function 1/x. As the x value gets bigger the y value gets smaller, for example:
1/X=Y
1/1=1
1/10=0.1
1/100=0.01
and so on...
And when X value gets smaller the y value gets bigger:
1/X=Y
1/0.1=10
1/0.01=100
1/0.001=1000
and so on..
When x=0 y=infinity, so it cannot be defined because the number is so big. But it still is a function.
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