Solve the Problem $\$ 4$ Per Day for Renting a Video Tape, and Then

Multiple Choice

Solve the problem.
-A video rental company charges $\$ 4$ per day for renting a video tape, and then $\$ 3$ per day after the first. Use the greatest integer function and write an expression for renting a video tape for $x$ days.

A) $y = 3 x + 4$

B) y = $3[[x-1]]+4$


C) y+4 = $3[[x]]$

D) $\mathrm { y } = \llbracket 3 \mathrm { x } + 4 \rrbracket$