Math Problem Statement

What is the equation of the line passing through the points shown in the graph?

Solution

The graph you provided shows a line passing through two points on a coordinate grid. To analyze the line, I will:

  1. Identify the coordinates of the two points through which the line passes.
  2. Calculate the slope using the formula:
    m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}
  3. Derive the equation of the line using the slope-intercept form:
    y=mx+by = mx + b where mm is the slope and bb is the y-intercept.

Step 1: Identifying the points

From the graph, the two points that the line passes through appear to be approximately:

  • (0,2)(0, 2)
  • (2,3)(-2, 3)

Step 2: Calculating the slope

The slope mm is: m=3220=12=12m = \frac{3 - 2}{-2 - 0} = \frac{1}{-2} = -\frac{1}{2}

Step 3: Equation of the line

Using the slope m=12m = -\frac{1}{2} and the y-intercept (0,2)(0, 2), the equation of the line is: y=12x+2y = -\frac{1}{2}x + 2

Would you like to explore more details about this problem or have any questions? Here are five related questions for further practice:

  1. What is the slope of a line parallel to this one?
  2. How would the equation change if the slope were positive?
  3. What is the equation of the line that passes through the origin and is perpendicular to this one?
  4. How do you find the distance between the two points used to calculate the slope?
  5. Can you calculate the x-intercept of this line?

Tip: When dealing with linear equations, the slope provides valuable information about the direction and steepness of the line.

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Math Problem Analysis

Mathematical Concepts

Algebra
Coordinate Geometry
Linear Equations

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Slope-intercept form: y = mx + b

Theorems

Linear Equation Properties

Suitable Grade Level

Grades 8-10