Lesson 3.1: Linear Functions Answers

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

Which function is graphed on the coordinate plane below?

What is the slope of the equation y – 3 = –4(x – 5)?

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?

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)?

Which equation is represented by the graph below?

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

Which graph represents y = –2x?