1. The phrase miles per hour is an example of a rate of change. What other rates of change commonly used in everyday speech can you think of?

2. If line a has a greater slope than line b, is line a steeper than line b? Explain,
giving examples to support your answer.

3. Which form of a linear equation do you prefer to use: slope-intercept form or
point-slope form? List advantages and disadvantages of each. Compare your
answer with a classmates and discuss any differences.

4. There is a geometric theorem that says "If two lines in a plane are
perpendicular to the same line, they are parallel to each other." Explain why this
is true by writing and comparing equations for two different lines that are
perpendicular to y=-1/3x