Math Problem Statement

Which ordered pair describes a point on the same line as the points shown?

Solution

The problem asks to identify which ordered pair lies on the same line as the points shown in the graph.

Step-by-step solution:

  1. Determine the equation of the line: Observing the graph, we see that the line passes through these points:

    • (6,4)(-6, -4)
    • (0,0)(0, 0) (the origin)

    Using these points, calculate the slope mm: m=y2y1x2x1=0(4)0(6)=46=23.m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{0 - (-4)}{0 - (-6)} = \frac{4}{6} = \frac{2}{3}.

    Since the line passes through the origin, its equation is: y=23x.y = \frac{2}{3}x.

  2. Check which ordered pair satisfies y=23xy = \frac{2}{3}x: Evaluate each option:

    • (2,3)(2, 3): y=23(2)=433y = \frac{2}{3}(2) = \frac{4}{3} \neq 3, not on the line.
    • (3,2)(3, 2): y=23(3)=2y = \frac{2}{3}(3) = 2, on the line.
    • (4,6)(4, 6): y=23(4)=836y = \frac{2}{3}(4) = \frac{8}{3} \neq 6, not on the line.
    • (6,4)(6, 4): y=23(6)=4y = \frac{2}{3}(6) = 4, on the line.
  3. Correct options: Both (3,2)(3, 2) and (6,4)(6, 4) lie on the line.

If you have additional questions, need further explanation, or want detailed steps for something else, let me know!


Related Questions to Deepen Understanding:

  1. How do you calculate the slope of a line given two points?
  2. What is the general equation of a line in slope-intercept form?
  3. How do you test if a point lies on a given line?
  4. How can you derive the equation of a line that does not pass through the origin?
  5. What happens if the slope of a line is zero or undefined?

Tip:

Always write the equation of the line before checking points—it simplifies the process and ensures accuracy!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope and Intercept
Coordinate Geometry

Formulas

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

Theorems

Point-Slope Theorem
Equation of a Line

Suitable Grade Level

Grades 7-9