If this is Math, proportional is when the arrow crosses the y-axis at the origin, (0,0), and non-proportional is when it crosses the y-axis somewhere where it is NOT (0,0), like (0,-50).
Erase the "If this is Math" part, I did not see the question correctly, sorry.
Anyways, if the test is written in literal words with no graph nor table, then see if the information that is given, changes it's formatting. For example, if it says that some person was giving out lemonades for $5 dollars per week, but on the 3rd week, it increased by $2 dollars, we know it is non-proportional because the equation changed from being y=$5x+ (y-intercept) to y=$7x+ (y-intercept).
However, if it just says that the lemonades cost $5 dollars per week, with no additional information, then that would be proportional since it is NOT changing it's formatting.
Somehow we are both learning about this at the time, but at least I could give you some information.
Of course, I'm here to help! Mathematics can be challenging, but with a little guidance and practice, you can improve your skills. What specific math topic or question do you need assistance with?
