(9) = ________________   Find an equation of the tangent line at  x = 9.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter8: Graphing Quadratic Functions
Section: Chapter Questions
Problem 17CT
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Use the limit definition to compute the derivative of the function at 

x = 9.
 
f(x) = 6x−2
 
f '(9) = ________________
 
Find an equation of the tangent line at 
x = 9.
 (Enter your answer as an equation using the variables y and x.)
 
________________
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