1. 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

2. 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.

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

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

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

The third row is the value of $\displaystyle 87.48h$

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

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.