Math Problem Statement
Graph the linear equation. 2 x plus 3 y equals 3
Solution
Let's first rewrite the given linear equation:
To graph it, we can convert this equation into slope-intercept form (), where is the slope and is the y-intercept.
Step 1: Solve for
3y = -2x + 3 \quad \text{(Subtract 2x from both sides)} y = -\frac{2}{3}x + 1 \quad \text{(Divide by 3 to isolate y)}
Step 2: Identify the slope and y-intercept
- The slope
- The y-intercept
Step 3: Plot the graph
- Start at the y-intercept: Place a point at on the y-axis.
- Use the slope: From the point , move down 2 units (because of the negative slope) and right 3 units to get the next point at .
- Draw the line: Connect the points, and extend the line in both directions.
I will generate the graph now for you! matplotlib.pyplot as plt import numpy as np
Define the equation y = -2/3 * x + 1
x = np.linspace(-10, 10, 400) y = (-2/3) * x + 1
Plot the graph
plt.figure(figsize=(6,6)) plt.plot(x, y, label=r'$2x + 3y = 3$', color='blue')
Mark the y-intercept
plt.scatter(0, 1, color='red', zorder=5) # y-intercept (0,1)
Annotate the y-intercept
plt.text(0, 1, '(0, 1)', fontsize=12, ha='right', color='red')
Label the axes and title
plt.axhline(0, color='black',linewidth=1) plt.axvline(0, color='black',linewidth=1) plt.title('Graph of the Linear Equation: $2x + 3y = 3$') plt.xlabel('x') plt.ylabel('y')
Set the limits of the graph
plt.xlim(-10, 10) plt.ylim(-10, 10)
Show the grid
plt.grid(True)
Display the plot
plt.legend() plt.show()Here is the graph of the linear equation . The line crosses the y-axis at , which is the y-intercept. The slope of the line is , meaning for every 3 units you move to the right, the line moves 2 units down.
Do you need any further details or have any questions about the graph?
Here are 5 related questions for further exploration:
- How do you calculate the slope of a line from two points?
- What does it mean geometrically when the slope of a line is negative?
- How can you find the x-intercept of a linear equation?
- How do you graph a linear equation in standard form, like ?
- What are the characteristics of parallel and perpendicular lines?
Tip: When graphing linear equations, always identify the slope and y-intercept first to quickly plot points and draw the line!
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Slope-Intercept Form
Graphing Linear Equations
Formulas
y = mx + b
2x + 3y = 3
Theorems
Slope-Intercept Theorem
Suitable Grade Level
Grades 7-9