Solution:
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
[tex]total\text{ charge = \lparen\$3}\times number\text{ of downloaded movies\rparen+monthly fee}[/tex]This gives
[tex]y=3x+6.50[/tex]Hence, the function that represents this situation is expressed as
[tex]y=3x+6.50[/tex]The fourth option is the correct answer.
