1. Justin opens a savings account with $4. He saves $2 each week. The table represents his account balance. Decide whether the table represents a linear function or a nonlinear function.
a. Which function or functions are linear?
b. Which function or functions shown in part (a) are nonlinear?
3. Error Analysis A student was asked to decide which table or tables represent a linear function. She incorrectly said that only Table II represents a linear function.
a. Decide which table or tables represent a linear function.
b. What mistake might the student have made?
A. She found the function that decreases instead of increases.
B. She found a nonlinear function instead of a linear function.
C. She found the function that represents a straight line.
D. She found the function with a constant rate of change.
4. Decide whether the table represents a linear function or a nonlinear function.