Your aunt works at a factory when they need extra help. She makes $8 per hour on the first shift, $9 per hour on second shift, and $10 per hour on third shift. a) Do the order pairs (hours worked, ear

Your aunt works at a factory when they need extra help. She makes $8 per hour on the first shift, $9 per hour on second shift, and $10 per hour on third shift.

a) Do the order pairs (hours worked, earnings) represent a function for all possible values? Explain.

b) Explain a way you could divide the ordered pairs in part (a) into three sets that are functions