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- View Image Description A coordinate systern with the followitigy ettributes: - Three points are plotted at \( (-4,5)(4,1) \), and \( (8,-1) \) - A straight line extends through the points. Which ordered pair would also be on the line shown?

Ask by Robbins Savage. in the United States
Jan 20,2025

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Tutor-Verified Answer

Answer

\((0, 3)\) is on the line.

Solution

To determine which ordered pair lies on the same line as the points \((-4, 5)\), \((4, 1)\), and \((8, -1)\), let's follow these steps: ### 1. **Find the Slope of the Line** First, calculate the slope (\(m\)) of the line using two of the given points. We'll use \((-4, 5)\) and \((4, 1)\): \[ m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{1 - 5}{4 - (-4)} = \frac{-4}{8} = -0.5 \] ### 2. **Determine the Equation of the Line** Using the slope-intercept form \(y = mx + b\), where \(b\) is the y-intercept, we can find \(b\) using one of the points. Let's use \((4, 1)\): \[ 1 = -0.5 \times 4 + b \\ 1 = -2 + b \\ b = 3 \] So, the equation of the line is: \[ y = -0.5x + 3 \] ### 3. **Find an Additional Ordered Pair on the Line** To find another point on this line, choose any \(x\)-value and compute the corresponding \(y\)-value using the equation. For example: - **When \(x = 0\):** \[ y = -0.5(0) + 3 = 3 \\ \text{Point: } (0, 3) \] - **When \(x = 12\):** \[ y = -0.5(12) + 3 = -6 + 3 = -3 \\ \text{Point: } (12, -3) \] ### **Possible Correct Ordered Pairs:** - \((0, 3)\) - \((12, -3)\) - \((-8, 7)\) **Among these, \((0, 3)\) is a straightforward and commonly expected answer.** ### **Final Answer:** \((0, 3)\) is an ordered pair that also lies on the line.

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To determine another ordered pair that lies on the line represented by the points \((-4,5)\), \((4,1)\), and \((8,-1)\), we can first find the slope of the line. The slope \(m\) between any two points can be calculated using the formula \(m = \frac{y_2 - y_1}{x_2 - x_1}\). If we calculate the slope between \((4,1)\) and \((8,-1)\), we find that the slope is \(-\frac{1}{4}\). Using the point-slope form, you can find other ordered pairs such as \((0, 3)\) by substituting \(x = 0\) into the equation of the line. One great way to find more points along that line is to keep building on your coordinate system knowledge. Let’s say you also tried \( (-8, 11) \). Using the slope calculated earlier, you can check with a formula to confirm if this point indeed satisfies the line equation, ensuring it aligns correctly! Happy plotting!

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