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- Find f(a), f(a + h), and the difference quotient f(a + h) − f(a), where h = h f(x) = 7 - 9x + 3x² 7-9a + 3a² f(a+h) = 7 – 9a − 9h+3a² +3h² + 6ah - f(a) f(a+h)-f(a) h = = 3h -12a-9 x

- Find f(a), f(a + h), and the difference quotient f(a + h) − f(a), where h = h f(x) = 7 - 9x + 3x² 7-9a + 3a² f(a+h) = 7 – 9a − 9h+3a² +3h² + 6ah - f(a) f(a+h)-f(a) h = = 3h -12a-9 x

Intermediate Algebra
Intermediate Algebra
10th Edition
ISBN:9781285195728
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter9: Functions
Section9.S: Summary
Problem 4S
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Question

What am I doing wrong with the last equation?

Find f(a), f(a + h), and the difference quotient f(a+h) − f(a), where h +0. h = 7 - 9x + 3x² f(x) = f(a) f(a+h) f(a+h) − f(a) h = = 7-9a+3a² 7 − 9a − 9h+3a² + 3h² + 6ah 3h12a-9 x
Transcribed Image Text:Find f(a), f(a + h), and the difference quotient f(a+h) − f(a), where h +0. h = 7 - 9x + 3x² f(x) = f(a) f(a+h) f(a+h) − f(a) h = = 7-9a+3a² 7 − 9a − 9h+3a² + 3h² + 6ah 3h12a-9 x
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It's the last equation that I keep getting wrong. When I do the math I end up getting 3h-12a-9 as the solution.

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