PLEASE HELP WITH MATH ASAP ILL GIVE BRAINLIEST

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

This is about circle theorems. someone asap : (