Two computer repair companies charge differing rates for their services. • We Fix It Computer Repair charges based on the equation C = 90 + 30h, where C is the total cost for working h hours. • John's Computer Repair charges are shown in the table below. John's Computer Repair Hours Total Cost 1 $55 2. $100 3 $145 $190 Which company has a higher hourly rate, and by how much? O We Fix It Computer Repair by $80 We Fix It Computer Repair by $15 O John's Computer Repair by $80 O John's Computer Repair by $15 VILLA

- 1.613 = -1.6 or -1.61

-1.522 = -1.5 or -1.52

0.587 = 0.6 or 0.59

3.079 = 3.1 or 3.08

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the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost