Graphing Problem

• Jan 22nd 2010, 02:39 AM
manich44
Graphing Problem
Hi,
Can someone have a look at the attachment and explain to me the bottom 3 lines of the table as I cant see where these figures come from.Also how can I draw a graph from these figure,by hand not excel etc.

Thanks....Mark
• Jan 22nd 2010, 05:21 AM
masters
Quote:

Originally Posted by manich44
Hi,
Can someone have a look at the attachment and explain to me the bottom 3 lines of the table as I cant see where these figures come from.Also how can I draw a graph from these figure,by hand not excel etc.

Thanks....Mark

Hi manich44,

It looks to me like this is a table for your graph in your ealier post.

$f(h)=h^3+87.48h-305.73$

The first row of your table looks like arbitrary values for h.

The second row is the value of $h^3$

The third row is the value of $87.48h$

The fourth row is the value of the constant 305.73.

The fifth row is the value of f(h) when you substitute values from row one into
$f(h)=h^3+87.48h-305.73$.

To graph manually, plot the domain coordinate from the first row along with its corresponding range coordinate from the fifth row.

You'll have to use a graphing calculator or the Cubic Formula to find the zero which I already told you in the other post.