First time seeing this explanation for x and y function. Thank you.

I’m a bit confused with the last example for inputs and outputs. Monday (which is on the x) was used twice (for June and September). Even though the arrows’ direction was not the same, there’s a rule that the x should always be written before the y. I’ll appreciate any corrections if what I’m thinking is wrong.

Finally I could understand..

thanks!! very helpfull.

Thanks...would have passed the exam if someone explained that to me prior...

Very clear