Question

Mike is a veterinarian. He is placing a nine-line job ad for an assistant.

Answer 1

The solution to the piecewise problem given are :

1. Difference in cost of 2 and 3 line ad is 0
2. Cost of 10-line ad = $108
3. Cost of 11 - line ad = $117

From the piecewice function given :

x = number of lines in ad

The cost of ad when x ≤ 3 is 45

Hence, the cost of a 2 and 3 line ad is 45, Therefore, the difference is 0 ;

The cost of a 10 - line ad ;

x = 10

Cost = 45 + 9(x - 3)

Cost = 45 + 9(10 - 3)

Cost = 45 + 9(7)

Cost = 45 + 63 = 108

The cost of a 11 - line ad ;

x = 11

Cost = 45 + 9(x - 3)

Cost = 45 + 9(11 - 3)

Cost = 45 + 9(8)

Cost = 45 + 72 = 117

Hence, the solution to the piecewise related questions.

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