proportional either directly proprtional or inversely directly means x/y=k where k stays the same therefor if x goes up then y goes upp, if x decreases, then y decreases
inversely=xy=k when x goes up y goes down, if x decreases then y increases
one example for each directly would be rate machine makes 450 toys in 4 hour how many toys mad in 7 hours we know that when hours goe up, then toys go up so it's poropetional
inverssely bob needs to earn 100 dollars per day his pay rate changes so he works differen hours each day so x=number of hours y=pay xy=pay
