Math Problem Statement

Graph the linear equation. 2 x plus 3 y equals 3

Solution

Let's first rewrite the given linear equation:

2x+3y=32x + 3y = 3

To graph it, we can convert this equation into slope-intercept form (y=mx+by = mx + b), where mm is the slope and bb is the y-intercept.

Step 1: Solve for yy

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 m=23m = -\frac{2}{3}
  • The y-intercept b=1b = 1

Step 3: Plot the graph

  1. Start at the y-intercept: Place a point at (0,1)(0, 1) on the y-axis.
  2. Use the slope: From the point (0,1)(0, 1), move down 2 units (because of the negative slope) and right 3 units to get the next point at (3,1)(3, -1).
  3. 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 2x+3y=32x + 3y = 3. The line crosses the y-axis at (0,1)(0, 1), which is the y-intercept. The slope of the line is 23-\frac{2}{3}, 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:

  1. How do you calculate the slope of a line from two points?
  2. What does it mean geometrically when the slope of a line is negative?
  3. How can you find the x-intercept of a linear equation?
  4. How do you graph a linear equation in standard form, like Ax+By=CAx + By = C?
  5. 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