Question

Joseph 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 Joseph paid for the book when he returned it x days after the due date.

2 + 0.25x

What does the coefficient of the expression represent?

The fixed rental for the book

The total late fee for the book

The late fee per day for the book

The number of days the book was overdue

Answer 1

What do you think?

Answer 2

Do you know what the "coefficient" is?

Answer 3

no i dont know

Answer 4

the coefficient is the number that is multiplied by the variable.
So what do you think the coefficient is ?

Answer 5

A coefficient is the number in front of the variable (so it multiplies the variable).

Answer 6

0.25?

Answer 7

Right. Now, what does that number represent? Read the problem again, if necessary.

Answer 8

how many days after the due date that its late

Answer 9

The equation has a part that does NOT depend on x (the 2) and a part that DOES depend on x (the 0.25).

Exactly! :)

Answer 10

so the answer would be D?

Answer 11

Because that's the part of the charge that depends on x.

Answer 12

yes.

Answer 13

Thank you :)

Answer 14

you're welcome. :)

Answer 15

no...wrong

Answer 16

how is it wrong?

Answer 17

Oh crap - @kelliegirl33 is right, it isn't D. sorry.

Answer 18

x is the number of days. 0.25 is the late fee per day

Answer 19

so it would be C?

Answer 20

yes, x is the number of days. I was thinking of x.... mental fart. lol

Answer 21

yes

Answer 22

oh ok thank you both

Answer 23

no problem