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Before watching the videos, think about and answer these questions to the best of your ability.

Melissa is driving along a straight road from Dallas, Texas to Oklahoma City, Oklahoma at a constant velocity. Every increase of ten minutes in the number of minutes since passing the state line, her distance from Oklahoma City decreases by seven miles. Which of the following statements is definitely true? (Note: can be read as “change in ” and as “change in .”)
(a) (b) (c) (d) Only statements (a) and (b) are definitely true. Only statements (c) and (d) are definitely true.
A candle has been burning at a constant rate of change of 1.25 inches per hour. The candle has been burning for 4 hours and is 5.5 inches tall. What was the length of the candle before it was lit?
5 inches 5.5 inches 6.75 inches 10.5 inches 23.25 inches
Overall, how confident are you in your answers?
Not at all confident Not very confident Somewhat confident Very Confident