### Home > INT2 > Chapter 7 > Lesson 7.2.2 > Problem7-90

7-90.

Sketch a graph that represents each situation. Describe the features of the graph completely.

1. Rafael walks from his home to the store one mile away in $15$ minutes. He shops for $30$ minutes. Then he waits for a bus outside the store and takes the bus home. Represent his distance from home over time.

2. Sujata works at a gym $15$ hours a week. She makes $\9.00$/hr, plus a $\10$ bonus for each new gym membership she sells. Represent her weekly earnings based on the number of gym memberships she sells.

Your graph should be linear. If you are only graphing her weekly earnings, should the points be connected?

3. Tom has $\500$ in a savings account. For balances under $\1000$, the bank does not pay interest. For balances over $\1000$, the bank pays $3\%$ annual interest. On the last day of each month, Tom deposits $\150$. Represent his account balance over time.