Explore BrainMass
Share

Domain and range

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

-x^2-20x-3
What are the domain and range and x intercepts of the function. Approximate to two decimal places

© BrainMass Inc. brainmass.com March 21, 2019, 10:43 am ad1c9bdddf
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.
...

Solution Summary

This shows how to find domain, range, and intercepts.

$2.19