Lesson 3.1: Linear Functions Answers

Tickets for the school play sell for $4 each. Which graph shows the relationship between the number of tickets sold (x) and the total income from the tickets (y)?

One manufacturer boxes screws so that each box weighs the same no matter what size the screws are. The graph shows the amount of allowed weight remaining in a given shipment depending on the number of boxes of screws already included. What does the y-intercept represent in this situation?

The cost to rent skis at a local sporting goods store is $15 plus $20 per day. Which equation models the relationship between the total cost to rent, c, and the length of the rental in days, d?

The graph of a function must be linear if it has what characteristic?

Which equation is represented by the graph below?

If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?

If f(x) is a linear function and the domain of f(x) is the set of all real numbers, which statement cannot be true?

Which graph represents y = –2x?

If f(x) is a linear function, what is the value of n?xf(x)–4–25–1–10n20

If f(x) is a linear function, which statement must be true?