ChapterP: Prerequisites
SectionP.4: Factoring Polynomials
Problem 84E: The rate of change of an autocatalytic chemical reaction is kQxkx2 where Q is the amount of the...
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Question
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) | = |
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||
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) | = |
|
||
|
= |
|
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) | = |
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f(−4) | = |
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||||
f(0) | = |
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||||
f(1) | = |
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f(x2) | = |
|
||||
f
|
= |
|
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