“Linear” means ‘straight line’
Two variables have a relationship if one variable canaffect the other
ie: your salary vs how many hours your work
How much you pay vs how much you buy
A relationship is linear if the two variables increase ordecrease at a constant ratio
Ie: each hour you work, your salary increases by $20
You pay another $25 for each additional hour of tutoring...
When you graph a linear relationship, you will get astraight line