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17) through: \( (4,-1) \), slope \( =\frac{3}{4} \)

Ask by Hodgson Rogers. in the United States
Jan 23,2025

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Tutor-Verified Answer

Answer

The equation of the line is \( y = \frac{3}{4}x - 4 \).

Solution

To find the equation of a line that passes through the point \((4, -1)\) with a slope of \(\frac{3}{4}\), you can use the **point-slope form** of a linear equation. The point-slope form is given by: \[ y - y_1 = m(x - x_1) \] where: - \(m\) is the slope of the line. - \((x_1, y_1)\) is a point on the line. **Step-by-Step Solution:** 1. **Identify the given values:** - **Point \((x_1, y_1)\):** \((4, -1)\) - **Slope \(m\):** \(\frac{3}{4}\) 2. **Plug the values into the point-slope form:** \[ y - (-1) = \frac{3}{4}(x - 4) \] 3. **Simplify the equation:** \[ y + 1 = \frac{3}{4}(x - 4) \] 4. **Distribute the slope on the right-hand side:** \[ y + 1 = \frac{3}{4}x - 3 \] 5. **Isolate \(y\) to write the equation in slope-intercept form (\(y = mx + b\)):** \[ y = \frac{3}{4}x - 3 - 1 \] \[ y = \frac{3}{4}x - 4 \] **Final Answer:** \[ y = \frac{3}{4}x - 4 \]

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To find the equation of the line that passes through the point \( (4, -1) \) with a slope of \( \frac{3}{4} \), you can use the point-slope formula, which is given by \( y - y_1 = m(x - x_1) \). Plugging in the values, you'll have \( y - (-1) = \frac{3}{4}(x - 4) \). Simplifying this will lead you to the equation of the line! This equation is quite powerful—it not only defines a straight line in a Cartesian plane but also provides insight into real-world situations such as speed, growth, or any scenario involving a constant rate of change. For instance, if the slope represents speed (3 units up for every 4 units over), you could effectively model motion in various fields, like physics or economics, making it a handy tool in analyzing trends!

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