anonymous
  • anonymous
Kylie borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Kylie paid for the book when she returned it x days after the due date. 2 + 0.25x What does the constant term of the expression represent? a.The late fee for the book b.The fixed rental for the book c.The number of books borrowed d.The number of days the book was overdue
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@e.mccormick help please
e.mccormick
  • e.mccormick
Do you know the definition of constant term?
anonymous
  • anonymous
not really

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e.mccormick
  • e.mccormick
OK. In any formula like this there are terms with constants, variables, or both. If there is a constant and a variable together, it is called the coefficient. So in \(3x^2+x+2\) 3 is a coefficient to \(x^2\), x is a variable by itself, and 2 is the constant term.
anonymous
  • anonymous
okay so it would be The number of days the book was overdue
e.mccormick
  • e.mccormick
x days is a variable. The constant is the number that is alone.
e.mccormick
  • e.mccormick
Another thing to remember: In English, the word constant means unchanging or always the same. That is why they use it for this in math. As opposed to variable, which means it changes.
anonymous
  • anonymous
The number of books borrowed
e.mccormick
  • e.mccormick
Closer. However, the problem says a book. So she only borrowed one, not two. Now, that IS a constant number! Just not the correct one.
anonymous
  • anonymous
The late fee for the book
e.mccormick
  • e.mccormick
Well, the late fee is per day... so the late fee is going to be attached to a variable.
anonymous
  • anonymous
SO I am right
e.mccormick
  • e.mccormick
No, the late fee is a coefficent and not a constant.
anonymous
  • anonymous
okay it was The fixed rental for the book
anonymous
  • anonymous
@e.mccormick
e.mccormick
  • e.mccormick
\(2 \leftarrow\) base cost/fixed rental of a book \(+ \leftarrow\) plus \(0.25 \leftarrow\) the late fee times \(x \leftarrow\) the variable for the days late. Yah.
e.mccormick
  • e.mccormick
Another thing like this would be a cell phone charge. You pay for the base minutes, then for every minute you go over in a month you pay an added fee. There are lots, and lots of examples like this in real life. =)
anonymous
  • anonymous
thanks :)
e.mccormick
  • e.mccormick
np. Have fun!

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