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Graph the line with the given slope \( m \) and \( y \)-intercept \( b \). \( m=2, b=-2 \)

Ask by Conner Huang. in the United States
Mar 20,2025

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To graph the line with slope \( m = 2 \) and \( y \)-intercept \( b = -2 \), follow these steps: 1. **Write the equation**: \( y = 2x - 2 \). 2. **Plot the \( y \)-intercept**: Mark the point \( (0, -2) \) on the graph. 3. **Use the slope**: Starting from \( (0, -2) \), move 1 unit right and 2 units up to reach \( (1, 0) \). 4. **Draw the line**: Connect the points \( (0, -2) \) and \( (1, 0) \) with a straight line. This line represents \( y = 2x - 2 \).

Solución

1. Write the equation in slope-intercept form. The slope-intercept form is given by: \[ y = mx + b \] With \( m = 2 \) and \( b = -2 \), the equation becomes: \[ y = 2x - 2 \] 2. Plot the \( y \)-intercept. The \( y \)-intercept is at \( (0, -2) \). Plot this point on the coordinate plane. 3. Use the slope to find another point. The slope \( m = 2 \) means a rise of 2 and a run of 1. Starting from \( (0, -2) \), move 1 unit to the right and 2 units up to get the point: \[ (1, 0) \] Plot this point. 4. Draw the line. Draw a straight line through the points \( (0, -2) \) and \( (1, 0) \). This is the graph of the line: \[ y = 2x - 2 \]

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To graph the line with slope \( m = 2 \) and \( y \)-intercept \( b = -2 \), start by plotting the y-intercept. This is the point where the line crosses the y-axis, at (0, -2). From there, use the slope to find another point. Since the slope is 2, which can be represented as \( \frac{2}{1} \), rise 2 units up and run 1 unit to the right from the y-intercept. This gives you the point (1, 0). Connect these two points with a straight line, and you'll have your graph! Here's a fun fact: the concept of the slope and y-intercept comes from the classic linear equation \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept. This format not only simplifies graphing but also shows how changes in \( x \) directly affect \( y \), keeping math interconnected and interesting! For those looking to sharpen their graphing skills, try practicing with different slopes and y-intercepts. Plotting lines with negative slopes or zero slope adds variety - a slope of -1 would move down as you go right, creating a whole new visual story. Always remember: every line tells its own tale in the graphing universe!

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