Pregunta
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Graph the line passing through the given point and having the indicated slope. through \( (-2,1) \) with slope \( -\frac{4}{3} \)

Ask by Long Campos. in the United States
Feb 13,2025

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To graph the line passing through the point (–2, 1) with a slope of –4/3: 1. Plot the point (–2, 1) on the coordinate plane. 2. Starting from this point, move 3 units to the right and 4 units down to reach (1, –3). 3. Draw a straight line connecting these two points. The equation of the line is:   y = –4/3 x – 5/3.

Solución

We are given the point (–2, 1) and a slope of –4/3. To graph the line, follow these steps: 1. Start with the point‐slope form of a line:   y – 1 = –4/3 (x + 2). 2. You can leave the equation in this form for graphing, or solve for y to obtain the slope-intercept form:   y = –4/3 (x + 2) + 1    = –4/3 x – 8/3 + 1    = –4/3 x – 8/3 + 3/3    = –4/3 x – 5/3. 3. To graph the line:   a. Plot the given point (–2, 1) on the coordinate plane.   b. Use the slope –4/3, which means “down 4 units for every 3 units to the right.” From (–2, 1), move 3 units to the right (to x = 1) and 4 units down (to y = –3), placing another point at (1, –3).   c. Draw a straight line through the points (–2, 1) and (1, –3). This graph represents the line with the equation:   y = –4/3 x – 5/3.

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Extra Insights

To graph the line that passes through the point \((-2, 1)\) with a slope of \(-\frac{4}{3}\), start by plotting the point on your graph. From there, use the slope to determine your next points: for every 3 units you move to the right (positive direction on the x-axis), move down 4 units (negative direction on the y-axis). This gives you the next point at \((1, -3)\). Connect these points with a straight line, and you’ve got your line! Remember: lines extend infinitely in both directions, so make sure to draw arrows at the ends of your line. A quick tip: when sketching, using the slope to find additional points helps ensure your line is accurate and visually pleasing!

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