Image + Graph example

For the “Image + Graph” example, I’m trying out the padlet ;)  Can you contribute answers to the questions on the padlet?  Besides what is listed on the padlet, you can also contemplate the following questions.  Does the graph take on more meaning when you combine it with an image?  What other information can you get out of the graph?  The broad band measurement gives one value whereas the spectra gives multiple values.  When might this be very good and when might you have to make sure you remember it is more of an average?