IDNLearn.com offers a comprehensive solution for finding accurate answers quickly. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

Examine the table and determine the rate of change.

\begin{tabular}{|c|c|}
\hline
[tex]$x$[/tex] & [tex]$y$[/tex] \\
\hline
1 & -4 \\
\hline
2 & -1 \\
\hline
3 & 2 \\
\hline
4 & 5 \\
\hline
\end{tabular}

What is the rate of change?

A. [tex]$-4$[/tex]
B. [tex]$-3$[/tex]
C. [tex]$1$[/tex]
D. [tex]$3$[/tex]


Sagot :

To determine the rate of change for the given table, we need to find the rate at which [tex]\( y \)[/tex] changes as [tex]\( x \)[/tex] increases. Here is the detailed step-by-step process to achieve that:

1. Identify the Data Points:
The table provides the following data points:
[tex]\[ (1, -4), (2, -1), (3, 2), (4, 5) \][/tex]

2. Calculate the Rate of Change Between Each Pair of Points:
The rate of change (or slope) between two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex] is given by:
[tex]\[ \text{Rate of change} = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

Let's apply this formula to each consecutive pair of points:

- For [tex]\((1, -4)\)[/tex] and [tex]\((2, -1)\)[/tex]:
[tex]\[ \text{Rate of change} = \frac{-1 - (-4)}{2 - 1} = \frac{-1 + 4}{1} = \frac{3}{1} = 3.0 \][/tex]

- For [tex]\((2, -1)\)[/tex] and [tex]\((3, 2)\)[/tex]:
[tex]\[ \text{Rate of change} = \frac{2 - (-1)}{3 - 2} = \frac{2 + 1}{1} = \frac{3}{1} = 3.0 \][/tex]

- For [tex]\((3, 2)\)[/tex] and [tex]\((4, 5)\)[/tex]:
[tex]\[ \text{Rate of change} = \frac{5 - 2}{4 - 3} = \frac{5 - 2}{1} = \frac{3}{1} = 3.0 \][/tex]

3. Consistent Rate of Change:
We observe that the rate of change between each consecutive pair of points is the same, equal to 3.0.

4. Conclusion:
Since the rate of change is consistent and equal to 3.0, we conclude that the rate of change for the table is:
[tex]\[ \boxed{3} \][/tex]

Therefore, the correct answer is:
[tex]\(3\)[/tex].