Question

If the given figure represents the relation between total cost (in $\$$) and total number of songs purchased, then what does the $y-$intercept of the line most likely represent?

• A. The cost per song
• B. The cost to join the service
• C. The cost of buying $20$ songs
• D. The cost of $20$ subscriptions to the service

Answer 1

Answer: (B)

The cost to join the service

The y-intercept is $(0,20)$.

This means the cost is $20$ before buying any songs.

Therefore it represents a flat membership fee for joining the service.