f(a), f(a + h), and the difference quotient f(a + h) − f(a) h, where h ≠ 0. f(x) = 9x2 + 7 f(a)  =  ‍   f(a + h)  =      f(a + h) − f(a) h

College Algebra
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ISBN:9781337282291
Author:Ron Larson
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ChapterP: Prerequisites
SectionP.4: Factoring Polynomials
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1.Find

f(a),
f(a + h),

and the difference quotient

f(a + h) − f(a)
h
,

where

h ≠ 0.
f(x) = 9x2 + 7
f(a)  = 
 
f(a + h)  = 
 
 
f(a + h) − f(a)
h
 = 
 
 

 

 

2.Find

f(a), f(a + h),

and the difference quotient

f(a + h) − f(a)
h
,

where h ≠ 0.

f(x) = 
x
x + 4
f(a)  = 
 
 
f(a + h)  = 
 
 
f(a + h) − f(a)
h
 = 
 
 

 

 

 

3. Find the domain and range of the function. (Enter your answers using interval notation.)

f(x) = 7x2 + 4
domain     
 
 
range     
 
 

 

 

 

4.Find the net change in the value of the function between the given inputs.

g(t) = 2 − t2;    from −6 to 9
 
 
 
 
 
5.  Find the net change in the value of the function between the given inputs.
f(x) = 5 − 4x;    from 4 to 6
 
 
Evaluate the piecewise defined function at the indicated values.
f(x) = 
 
9x     if x < −2
x + 1     if −2 ≤ x ≤ 5
(x − 5)2     if x > 5
f(−5)  =   
f(−2)  =   
f(4)  =   
f(5)  =   
f(8)  =   
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

6. Evaluate the function at the indicated values. (If an answer is undefined, enter UNDEFINED.)

f(x) = 
|x|
x
f(−8)  = 
 
 
f(−4)  = 
 
 
f(0)  = 
 
 
f(1)  = 
 
 
f(x2)  = 
 
 
, x ≠ 0
f
 
1
x
 
 = 
 
 

 

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