e rate of change in data entry speed of the average student is ds/dx = 7(x + 9)-1/2, where x is the number of lessons the student has had and s is (a) Find the data entry speed as a function of the number of lessons if the average student can complete 42 entries per minute with no lesson s(x) = | 14(0 + 9)12 +

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Author:HOUGHTON MIFFLIN HARCOURT
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Chapter8: Graphing Quadratic Functions
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The rate of change in data entry speed of the average student is ds/dx = 7(x + 9)¯1/2, where x is the number of lessons the student has had and s is in entries per minute.
(a) Find the data entry speed as a function of the number of lessons if the average student can complete 42 entries per minute with no lessons (x = 0).
s(x) = 14(0+ 9)12+
Transcribed Image Text:The rate of change in data entry speed of the average student is ds/dx = 7(x + 9)¯1/2, where x is the number of lessons the student has had and s is in entries per minute. (a) Find the data entry speed as a function of the number of lessons if the average student can complete 42 entries per minute with no lessons (x = 0). s(x) = 14(0+ 9)12+
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