4.8 modeling real world linear relationships check in

An electrician charges a fee of $75 plus $30 per hour of labor. Which equation models this?

A gym charges a signup fee of $50 plus $20 per month. Which equation models this?

A rental car company charges $28 per day plus a reservation fee of $100. Which equation models this?

A cell phone company charges a monthly fee of $50 plus $15 per gigabyte of data. Which equation models this?

• $360

• $470

• $720

• $1020

• $965

• $1020

• $140

• $97

• $31

• $310

• $94

• $247

The graph represents the cost y (in $) to open an online gaming account and buy x games. What is the initial value?

• $0

• $15

• $10

The graph represents the cost y (in $) to open an online gaming account and buy x games. What is the rate per game?

• $0

• $15

• 2/3

• $10

The graph represents the cost y (in $) to open an online gaming account and buy x games. Which equation best models this?