SOLUTION: How do i find the range of f(x)={{{1/(x^2+3x+5)}}}

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Question 760261: How do i find the range of f(x)=
Answer by reviewermath(1029)   (Show Source): You can put this solution on YOUR website!
Q:
How do i find the range of f(x)=
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A:
Let y =
Solve for x in terms of y.
=

Use the Quadratic Formula to solve for x.


The expression inside the square root is .
≥ 0
≥ 0
Using Sign Test
0 < y ≤
In interval notation, the range is (0, 4/11].

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