Evaluate the difference quotient for the given function. Simplify your answer.

snowlovelydayM

snowlovelydayM

Answered question

2021-09-18

Evaluate the difference quotient for the given function.
f(x)=4+3xx2,f(3+h)f(3)h

Answer & Explanation

Alix Ortiz

Alix Ortiz

Skilled2021-09-19Added 109 answers

Solution:

f(x)=4+3xx2, thus
f(3+h)=4+3(3+h)(3+h)2 
=4+9+3h(9+6h+h2)=43hh2 
f(3+h)f(3)h=(43hh2)4h 
=h(3h)h=3h 
Answer: f(3+h)f(3)h=3h

Andre BalkonE

Andre BalkonE

Skilled2023-06-14Added 110 answers

Answer:
3h
Explanation:
First, let's find f(3+h):
f(3+h)=4+3(3+h)(3+h)2
Simplifying this expression:
f(3+h)=4+9+3h(9+6h+h2)
f(3+h)=13+3h96hh2
f(3+h)=43hh2
Now, let's find f(3):
f(3)=4+3(3)32
Simplifying this expression:
f(3)=4+99
f(3)=4
Finally, we can calculate the difference quotient:
f(3+h)f(3)h=(43hh2)4h
Simplifying this expression:
f(3+h)f(3)h=3hh2h
f(3+h)f(3)h=h(3h)h
f(3+h)f(3)h=3h
Therefore, the difference quotient for the given function is 3h.
xleb123

xleb123

Skilled2023-06-14Added 181 answers

Solution:
Substitute the value of x in the function with 3+h:
f(3+h)=4+3(3+h)(3+h)2
Evaluate f(3) by substituting x with 3 in the function:
f(3)=4+3(3)(3)2
Plug in the values into the difference quotient formula:
f(3+h)f(3)h=(4+3(3+h)(3+h)2)(4+3(3)(3)2)h
fudzisako

fudzisako

Skilled2023-06-14Added 105 answers

Step 1: Substitute the values into the function.
We need to find f(3+h)f(3)h. Let's substitute these values into the function:
f(3+h)=4+3(3+h)(3+h)2 and f(3)=4+3(3)(3)2.
Step 2: Simplify the expressions.
Now, we simplify the expressions inside the function:
f(3+h)=4+9+3h(9+6h+h2) and f(3)=4+99.
Step 3: Expand and combine like terms.
Expand and simplify the expressions further:
f(3+h)=13+3h96hh2 and f(3)=4.
Step 4: Evaluate the difference quotient.
Now, let's substitute these values back into the difference quotient:
f(3+h)f(3)h=(13+3h96hh2)4h
Step 5: Simplify the expression.
Simplify the expression by combining like terms:
13+3h96hh24h=(3h6h)+(1394)h2h
Step 6: Further simplify and factor out a negative sign:
3h+0h2h=h23hh
Step 7: Cancel out common factors.
We can cancel out the common factor of h:
h(h+3)h=h31=h3
Therefore, the difference quotient for the given function f(x)=4+3xx2 is h3, which can also be written as 3h.

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