The graph shows Michaela’s earnings over time. Marcus’s hourly rate is represented in the table. Who has a greater rate of pay, and how much more than the other will that person earn in 40 hours of work?

A. Complete the table, write an equation, and graph Marcus’s earnings A over time t.

k = 19/2 = ? A = ?

B. Use the graph to determine who is earning a greater rate of pay. Explain how you know.

C. What information do you still need in order to solve the problem? Solve the problem and show your work.

I still need...

Michaela

?/10 = k, or k = ?

A = kt

A = ?t

A = ? (?) = $480

Marcus:

A = kt

A = ?t

A = ? (?) = ?