Math Problem Statement

The points L(-7, -4), M(-1, -8), N(1, -5), and O(-5, -1) form a quadrilateral. Find the desired slopes and lengths, then fill in the words that BEST identifies the type of quadrilateral.

Solution

The problem involves determining the type of quadrilateral formed by the points L(7,4)L(-7, -4), M(1,8)M(-1, -8), N(1,5)N(1, -5), and O(5,1)O(-5, -1), using the slopes and lengths of the sides.

Let's break down the information:

  1. Slopes of the sides:

    • Slope of LM=23LM = -\frac{2}{3}
    • Slope of MN=32MN = \frac{3}{2}
    • Slope of NO=23NO = -\frac{2}{3}
    • Slope of OL=32OL = \frac{3}{2}
  2. Lengths of the sides:

    • Length of LM=213LM = 2\sqrt{13}
    • Length of MN=13MN = \sqrt{13}
    • Length of NO=213NO = 2\sqrt{13}
    • Length of OL=13OL = \sqrt{13}

Identifying the quadrilateral:

  • The opposite sides LMLM and NONO have equal slopes (23-\frac{2}{3}) and equal lengths (2132\sqrt{13}).
  • The opposite sides MNMN and OLOL also have equal slopes (32\frac{3}{2}) and equal lengths (13\sqrt{13}).

When opposite sides are both equal in length and parallel (having the same slope), the quadrilateral is classified as a parallelogram.

Therefore, the quadrilateral LMNOLMNO is a parallelogram.

Would you like more detailed steps or clarifications?

Related Questions:

  1. How do you calculate the slope between two points?
  2. How is the distance formula derived from the Pythagorean theorem?
  3. What are the characteristics of different types of quadrilaterals (e.g., rhombus, rectangle, square)?
  4. How do parallel lines relate to the slopes of line segments?
  5. How do you determine if a quadrilateral is a rectangle or a rhombus?

Tip:

To identify a quadrilateral, always check the slopes and lengths of opposite sides. If both are equal, it's likely a parallelogram!

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Math Problem Analysis

Mathematical Concepts

Analytic Geometry
Slopes of Lines
Distance Formula
Quadrilaterals

Formulas

Slope formula: (y2 - y1) / (x2 - x1)
Distance formula: √[(x2 - x1)^2 + (y2 - y1)^2]

Theorems

Properties of Parallelograms

Suitable Grade Level

Grades 9-10