Question

An online service charges $3 for each downloaded movie, plus a monthly fee of $6.50. Which function represents this situation?y = 6.50 x - 3y = 3 x - 6.50y = 6.50 x + 3y = 3 x + 6.50

Answer 1

Let x represent the number of downloaded movies, and y represent the total charge.

Given that $3 is charged for each downloaded movie, plus a monthly fee of $6.50, this implies that

`total\text{ charge = \lparen\$3}* number\text{ of downloaded movies\rparen+monthly fee}`

This gives

`y=3x+6.50`

Hence, the function that represents this situation is expressed as

`y=3x+6.50`

The fourth option is the correct answer.