9

. A computer repair technician is deciding what hourly rate to charge for her services. She knows that if she charges $60/h, she will get 30 h of work per week. She also knows that for every $5 increase in her hourly rate, she will lose 4 h of work per week.

a) Copy and complete the table.

Hourly Rate ($)

45

50

55

60

65

70

Expected Number of Hours per Week

30

26

Weekly Revenue ($)

(60)(30) =\$1800

b) Graph the relation between hourly rate and weekly revenue.

c) Write a relation in the form y = a * (x - h) ^ 2 + k to represent the graph.