### Home > CALC > Chapter 4 > Lesson 4.2.4 > Problem 4-86s

4-86s.

Brianna is babysitting for her calculus teacher because she broke her phone and needs to buy a new one. She will get paid at a flat rate of

Sketch a graph and write a piecewise function to represent Brianna’s pay rate.

How much will Brianna get paid for the five hours of work?

Represent Brianna’s total pay using definite integrals.

His error is in the first line. How does he use or not use the Distributive Property?