Finding values based on the standard curve - Pls help

**Wilsern** · 08-25-2011, 04:44 AM

I have plotted a standard curve with x n y values.

Now I have another few y values and I am required to get the value of x value corresponding to each y value. How to plot the graph showing that I have found the values of x with the reference of my graph. I know how to do it on graph paper but I don't know how to set the equation or any settings to draw that in Excel 2010.

It is like drawing a dotted line from the y value at the y axis until it touches the graph. From that point draw another dotted line to the x axis. The value of x in x axis is the value corresponding to y value. Is there any way to draw that in Excel 2010?

Can anyone help?

Thanks

**Wilsern** · 08-25-2011, 05:37 AM

Anyone please help? It is urgent.

**Wilsern** · 08-25-2011, 08:01 PM

Bring up my post.

**shg** · 08-25-2011, 08:45 PM

Add another series with three points:

0, y
x, y
x, 0

**Wilsern** · 08-25-2011, 09:30 PM

What I understand with your reply is get 3 points and draw another line on the graph. Am I right?

But, what I meant was how to do draw a dotted line extending from a given x value from x axis to the line in the graph which is the turning point to another dotted line to y axis(not given). How to draw it in Excel 2010?

Thanks