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kudzordzifrancis

Answer:

a) 1200

b) +15

Step-by-step explanation:

The given equation is

[tex]y=15x+1200[/tex]

The cost to get started is the initial cost(y-intercept) which is [tex]1200[/tex].

The change in total cost for each book printed is the slope of the line which is [tex]+15[/tex]

mixter17

Hello!

The answers are:

  • $1200
  • $25(+)

Why?

For the first question, if there is no printed book, the variable x will be 0, so:

[tex]y=1200+15x\\y=1200+15(0)[/tex]

The cost to get started, meaning that there is not any printed book, is $1200

For the second question, to determine the change in the total cost for each printed book, let's assume that there is just one book printed, so:

[tex]y=1200+15x\\y=1200+15(1)=1215[/tex]

So, the change for each printed book is $15(+) because:

[tex]Change=(1)BookPrintedCost-NoBookPrintedCost=1215-1200=15[/tex]

Have a nice day!

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