Get the answers you need at Westonci.ca, where our expert community is dedicated to providing you with accurate information. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

Which statement best explains whether the following table represents a linear or nonlinear function?

\begin{tabular}{|c|c|c|c|c|c|}
\hline
[tex]$x$[/tex] & -2 & -1 & 0 & 1 & 2 \\
\hline
[tex]$y$[/tex] & 4 & 2 & 0 & 2 & 4 \\
\hline
\end{tabular}

A. The table represents a nonlinear function because there is not a constant rate of change in the input values.

B. The table represents a nonlinear function because there is not a constant rate of change in the output values.

C. The table represents a linear function because there is a constant rate of change in the input and output values.

D. The table represents a linear function because there is not a constant rate of change in the input and output values.


Sagot :

To determine whether the table represents a linear or nonlinear function, we need to examine the rate of change of the function. Linear functions have a constant rate of change, meaning that the difference between consecutive [tex]$y$[/tex]-values divided by the difference between consecutive [tex]$x$[/tex]-values (slope) is always the same.

Let's analyze the provided table:
[tex]\[ \begin{tabular}{|c|c|c|c|c|c|} \hline x & -2 & -1 & 0 & 1 & 2 \\ \hline y & 4 & 2 & 0 & 2 & 4 \\ \hline \end{tabular} \][/tex]

### Step-by-Step Solution

1. Calculate the differences in the [tex]$x$[/tex]-values:
[tex]\[ \Delta x = x_{i+1} - x_i \][/tex]
[tex]\[ \Delta x = [-1 - (-2), 0 - (-1), 1 - 0, 2 - 1] \][/tex]
[tex]\[ \Delta x = [1, 1, 1, 1] \][/tex]

2. Calculate the differences in the [tex]$y$[/tex]-values:
[tex]\[ \Delta y = y_{i+1} - y_i \][/tex]
[tex]\[ \Delta y = [2 - 4, 0 - 2, 2 - 0, 4 - 2] \][/tex]
[tex]\[ \Delta y = [-2, -2, 2, 2] \][/tex]

3. Calculate the rate of change for each pair of points:
[tex]\[ \text{Rate of change} = \frac{\Delta y}{\Delta x} \][/tex]
[tex]\[ \text{Rate of change} = \left[\frac{-2}{1}, \frac{-2}{1}, \frac{2}{1}, \frac{2}{1}\right] \][/tex]
[tex]\[ \text{Rate of change} = [-2.0, -2.0, 2.0, 2.0] \][/tex]

4. Check if the rate of change is constant:
[tex]\[ \text{Rate of change} = [-2.0, -2.0, 2.0, 2.0] \][/tex]
The rates of change are not all the same. Some are -2.0 and others are 2.0.

### Conclusion
Since the rate of change of the output values ([tex]\(y\)[/tex]) is not constant, the table represents a nonlinear function.

Therefore, the correct statement is:
"The table represents a nonlinear function because there is not a constant rate of change in the output values."