Question
Identify the range of the function
.
Ask by Hamilton Owen. in South Africa
Jan 12,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The range of
is all real numbers less than or equal to zero, which can be written as
.
Solution
To determine the range of the function
, let’s follow these steps:
-
Understand the Function:
- The function involves a square root, which means the expression inside the square root must be non-negative.
- The outer negative sign affects the output of the square root.
-
Determine the Domain:
- The expression inside the square root must satisfy:
- So, the domain of
is .
- The expression inside the square root must satisfy:
-
Analyze the Output
: - Let
. - Since square roots are always non-negative (
), multiplying by makes non-positive: - As
increases beyond , increases, making grow larger. Consequently, becomes more negative without bound.
- Let
-
Conclusion on the Range:
- The smallest value
can take is (when ). - There is no lower limit to how negative
can be as increases. - Therefore, the range of
is all real numbers less than or equal to zero.
- The smallest value
Range of
:
Answer:
All real numbers y with y at most zero. In other words, the range is ( –∞, 0 ].
All real numbers y with y at most zero. In other words, the range is ( –∞, 0 ].
Answered by UpStudy AI and reviewed by a Professional Tutor
Like
error msg


The Deep Dive
To determine the range of the function
, we first need to identify the values of
for which this function is defined. The expression under the square root,
, must be non-negative. Solving for
gives us:
Now, as
takes values starting from
and increases towards positive infinity, the term
will yield values starting from
(when
) to positive values as
goes to infinity. Consequently,
will take the negative of those square root values, which means the function will start from
and go down towards negative infinity. Thus, the range of the function
is: