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Section 4.2 rate of change (math)
- 1. Section 4.2 Rateof Change
- 2. Rate of Changeof a Linear Relationship The rate of change of a linear relationship is the steepness of the line. rise run Rate of Change =
- 3. Rates of change are seen everywhere.
- 4. The steepness of the roof of a house is referred to as the pitch of the roof by home builders.
- 5. Give one reasonwhy some homes have roofs which have a greater pitch . There is less snow buildup in the wintertime.
- 6. Engineers refer tothe rate of change of a road as the grade .
- 7. They often representthe rate of change as a percentage .
- 8. A grade of8% would mean for every rise of 8 units there is a run of 100 units . = 8% 8 100 Rate of change =
- 9. The steepness ofwheelchair ramps is of great importance for safety. Rate of change of wheelchair ramp = 1 12 If the rise is 1.5 m, what is the run? Answer: 18 m because
- 10. 3 m 5m Determine the rate of change ( pitch ) of the roof.
- 11. Determine the rateof change of each staircase. 2 3 3 3
- 12. Determine the rateof change. Which points will you use to determine rise and run? = $5/hr 20 4 Earnings Number of Hours Worked What does this rate of change represent? The hourly wage
- 13. Page 163 #4 – 18 even