1. **State the problem:** Given the table of values for $x$ and $y$, find the linear equation that relates $y$ to $x$.
2. **Identify the pattern:** From the table, as $x$ increases by 1, $y$ decreases by 8. This suggests a linear relationship of the form $$y = mx + b$$ where $m$ is the slope and $b$ is the y-intercept.
3. **Calculate the slope $m$:**
$$m = \frac{\Delta y}{\Delta x} = \frac{-31 - (-23)}{5 - 4} = \frac{-8}{1} = -8$$
4. **Use a point to find $b$:** Using the point $(4, -23)$,
$$-23 = -8 \times 4 + b$$
$$-23 = -32 + b$$
$$b = -23 + 32 = 9$$
5. **Write the equation:**
$$y = -8x + 9$$
6. **Verify with another point:** For $x=5$,
$$y = -8 \times 5 + 9 = -40 + 9 = -31$$ which matches the table.
**Final answer:**
$$y = -8x + 9$$
Linear Equation 344D42
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