2. A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be represented by 10 I(d) = a) the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓ b) the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the flash bulb (two decimal places). ✓ c) What does the sign of your answer to part b), indicate about the light intensity? ✓
2. A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the flash bulb, I, measured in lux, is a function of the distance from the light, d, measured in metres, and can be represented by 10 I(d) = a) the average rate of change in the intensity of light for the interval [2, 5] (two decimal places). ✓✓ b) the approximate instantaneous rate of change in the intensity of light at exactly 6 m from the flash bulb (two decimal places). ✓ c) What does the sign of your answer to part b), indicate about the light intensity? ✓
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter10: Radical Functions And Equations
Section: Chapter Questions
Problem 15CT
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