The word "slope" may also be referred to as "gradient", "incline" or "pitch", and be expressed as: A special circumstance exists when working with straight lines (linear functions), in that the "rate of change" (the slope) is constant. No matter where you check the slope on a straight line, you will get the same answer.

South shore mall storesRate of Change and Slope Without graphing, tell whether the slope of a line that models each situation is positive, negative, zero, or unde!ned. !en "nd the slope. 16. !e cost of tickets to the amusement park is $19.50 for 1 ticket and $78 for 4 tickets. 17. !e late fee is $2 regardless of the number of days the movie is late. 18.

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