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Thanks now it works!
It was the epstopdf package that was needed

I am having an error when I try and include a graphic but this error only occurs when I try and input the command directly using ctrl.
This has been annoying me because there are some settings my professor wants me to put on my paper but I can't get it to work.

If I go to include graphics and ...

Thanks a lot, i used the insert graphics and it worked perfectly.
Out of curiosity, when i tried Insert>Float>Firgure i got two red boxes. What would i type in the red boxes to insert the pdfs?

Here is an example from my last homework of my original question. I scaled the first pdf and left the other at 100%.

I inserted the pdfs by
insert>file>externalmaterial... and then selecting the pdf template

I am a math graduate student and personally i use lyx because it is fast. It is a great tool for me to write rough drafts or take notes in class. I do not have to think or worry about any coding mistakes. Also, if you have basic knowledge of the program you will almost never have to use your mouse ...

I am having touble with scaling my pdf files in my lyx documents. I am currently able to scale my pdf by clicking on the pdf (after importing it) going to the size and rotation tab and scaling the image to what ever size i choose. My problem is that no matter what size i choose to scale the pdf ...