Analyzing the Behavior of the Step Function

Oct 13, 2025 by windailys.com 100 views

A step function is a type of function that has a specific set of values for a given input. In this case, the step function h(x) $}$ is represented by the equation <span class="katex-error" title="ParseError KaTeX parse error: Expected '', got 'EOF' at end of input: " style="color#cc0000">{ y = -2[x] $$. To understand the range of this function, we need to break down the equation and analyze its behavior.

What is the Step Function ${$ h(x) $}$?

The step function ${$ h(x) $}$ is defined as ${$ y = -2[x] $}$. The expression ${$ [x] $}$ represents the greatest integer less than or equal to ${$ x $}$. This means that the step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$.

Analyzing the Behavior of the Step Function

To understand the behavior of the step function ${$ h(x) $}$, let's consider a few examples. Suppose we have an input value of ${$ x = 2.5 $}$. In this case, the greatest integer less than or equal to ${$ x $}$ is ${$ 2 $}$. Therefore, the step function ${$ h(x) $}$ takes on the value of ${$ -2 \times 2 = -4 $}$.

Now, suppose we have an input value of ${$ x = 3.7 $}$. In this case, the greatest integer less than or equal to ${$ x $}$ is ${$ 3 $}$. Therefore, the step function ${$ h(x) $}$ takes on the value of ${$ -2 \times 3 = -6 $}$.

As we can see, the step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$. This means that the step function ${$ h(x) $}$ can take on any value in the set of negative integers.

Determining the Range of the Step Function

Based on our analysis, we can conclude that the range of the step function ${$ h(x) $}$ is the set of all negative integers. This is because the step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$, which can be any negative integer.

Conclusion

In conclusion, the step function ${$ h(x) $}$ represented by the equation ${$ y = -2[x] $}$ has a range of all negative integers. This is because the step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$, which can be any negative integer.

Answer

The correct answer is C. all negative integers.

Additional Information

Q: What is a step function?

A step function is a type of function that has a specific set of values for a given input. It is a function that takes on a constant value over a certain interval, and then "steps up" to a new constant value at a certain point.

Q: What is the equation ${$ y = -2[x] $}$ representing?

The equation ${$ y = -2[x] $}$ is representing a step function where the value of ${$ y $}$ is equal to ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$.

Q: What is the greatest integer function ${$ [x] $}$?

The greatest integer function ${$ [x] $}$ is a function that takes a real number ${$ x $}$ and returns the greatest integer less than or equal to ${$ x $}$. For example, ${$ [3.7] = 3 $}$, ${$ [2.5] = 2 $}$, and ${$ [-3.2] = -4 $}$.

Q: How does the step function ${$ h(x) $}$ behave for different input values?

The step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$. For example, if ${$ x = 2.5 $}$, then ${$ h(x) = -2 \times 2 = -4 $}$. If ${$ x = 3.7 $}$, then ${$ h(x) = -2 \times 3 = -6 $}$.

Q: What is the range of the step function ${$ h(x) $}$?

The range of the step function ${$ h(x) $}$ is the set of all negative integers. This is because the step function ${$ h(x) $}$ takes on the value of ${$ -2 $}$ times the greatest integer less than or equal to ${$ x $}$, which can be any negative integer.

Q: Can the step function ${$ h(x) $}$ take on any real number value?

No, the step function ${$ h(x) $}$ can only take on negative integer values. It cannot take on any real number value that is not a negative integer.

Q: Is the step function ${$ h(x) $}$ a rational function?

Yes, the step function ${$ h(x) $}$ is a rational function because it can be expressed as a ratio of two polynomials. However, it is not a rational function in the classical sense because it does not have a rational expression for its output.

Q: Can the step function ${$ h(x) $}$ be used to model real-world phenomena?

Yes, the step function ${$ h(x) $}$ can be used to model real-world phenomena such as the behavior of a population that is subject to a certain threshold or limit. For example, a population may grow rapidly until it reaches a certain threshold, at which point it may level off or decline.

Q: How can the step function ${$ h(x) $}$ be used in optimization problems?

The step function ${$ h(x) $}$ can be used in optimization problems to model the behavior of a system that is subject to certain constraints or thresholds. For example, a company may want to maximize its profits while minimizing its costs, subject to certain constraints on the amount of resources it can use.

Q: Can the step function ${$ h(x) $}$ be used in machine learning?

Yes, the step function ${$ h(x) $}$ can be used in machine learning to model the behavior of a system that is subject to certain thresholds or limits. For example, a neural network may use a step function to model the behavior of a system that is subject to certain constraints or thresholds.