Domain and range
-x^2-20x-3
What are the domain and range and x intercepts of the function. Approximate to two decimal places
https://brainmass.com/math/algebra/domain-and-range-22717
Solution Preview
f(x)=-x^2-20x-3.
Then a=-1<0, b=-20, c=-3.
(1) The domain of f is all real numbers.
(2) To find the range of f, we need to find its vertex.
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Solution Summary
This shows how to find domain, range, and intercepts.
$2.19