Math Problem Statement

The endpoints of CD are C(-8, - 6) and D(-4, 10).

Solution

To analyze the line segment CD with endpoints C(-8, -6) and D(-4, 10), we can find several key properties:

1. Length of CD

The length of the line segment can be calculated using the distance formula: Length=(x2x1)2+(y2y1)2\text{Length} = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} Substituting the coordinates of C(-8, -6) and D(-4, 10): Length=(4(8))2+(10(6))2=(4)2+(16)2=16+256=272=41716.49\text{Length} = \sqrt{(-4 - (-8))^2 + (10 - (-6))^2} = \sqrt{(4)^2 + (16)^2} = \sqrt{16 + 256} = \sqrt{272} = 4\sqrt{17} \approx 16.49

2. Midpoint of CD

The midpoint of the line segment can be found using the midpoint formula: Midpoint=(x1+x22,y1+y22)\text{Midpoint} = \left(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}\right) Substituting the coordinates of C(-8, -6) and D(-4, 10): Midpoint=(8+(4)2,6+102)=(122,42)=(6,2)\text{Midpoint} = \left(\frac{-8 + (-4)}{2}, \frac{-6 + 10}{2}\right) = \left(\frac{-12}{2}, \frac{4}{2}\right) = (-6, 2)

3. Slope of CD

The slope of the line segment is calculated using the slope formula: Slope=y2y1x2x1\text{Slope} = \frac{y_2 - y_1}{x_2 - x_1} Substituting the coordinates of C(-8, -6) and D(-4, 10): Slope=10(6)4(8)=164=4\text{Slope} = \frac{10 - (-6)}{-4 - (-8)} = \frac{16}{4} = 4

Summary

  • Length of CD: 4174\sqrt{17} or approximately 16.49 units
  • Midpoint of CD: (-6, 2)
  • Slope of CD: 4

Would you like any further details or have any questions?

Here are some related questions:

  1. How do you find the equation of the line that passes through points C and D?
  2. What is the perpendicular slope to the line CD?
  3. How do you calculate the area of a triangle formed with another point and this line segment?
  4. What are the x and y intercepts of the line through CD?
  5. How does the distance from a point to a line compare with the segment length?

Tip: The distance formula is essentially the Pythagorean Theorem applied to the difference in coordinates.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Distance Formula
Midpoint Formula
Slope of a Line

Formulas

Distance formula
Midpoint formula
Slope formula

Theorems

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Suitable Grade Level

Grades 9-12