Math Problem Statement

answer this

Ms. Molina asked her students to graph the linear function 3x - 2y = 6. Which graph corresponds to this equation?

Solution

Let's analyze the given linear equation:

3x2y=63x - 2y = 6

Step 1: Rearrange to slope-intercept form (y=mx+by = mx + b):

Start by solving for yy:

3x2y=63x - 2y = 6 Subtract 3x3x from both sides: 2y=3x+6-2y = -3x + 6 Now divide by 2-2 to isolate yy: y=32x3y = \frac{3}{2}x - 3

Step 2: Identify the slope and y-intercept:

  • Slope (m): 32\frac{3}{2}
  • Y-intercept (b): 3-3

Step 3: Plot the graph:

  • The line crosses the y-axis at (0,3)(0, -3).
  • Use the slope 32\frac{3}{2}, which means for every 2 units to the right, move 3 units up.

Step 4: Match with the options:

Looking at the options in the image:

  • Option D shows the correct line with a positive slope and a y-intercept at 3-3.

Thus, the correct answer is Option D.

Would you like further details on how to graph it manually or any other related questions?

Relative questions:

  1. What is the importance of slope-intercept form in graphing linear equations?
  2. How do you find the x-intercept of a line given in standard form?
  3. Can every linear equation be written in slope-intercept form?
  4. How would the graph of the equation change if the slope were negative?
  5. How do you graph a line if it's given in point-slope form?

Tip:

Always verify the slope and intercept visually when matching graphs to equations.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

Slope-Intercept Form: y = mx + b

Theorems

Slope-Intercept Theorem
Solving for y in linear equations

Suitable Grade Level

Grades 8-10