Math Problem Statement

What is the second coordinate of the displacement vector \(\overrightarrow{PQ}\) given point P(-3, 1) and point Q(3, -2)?

Solution

We are asked to find the second coordinate (i.e., the y-component) of the displacement vector PQ\overrightarrow{PQ}.

To calculate the displacement vector PQ\overrightarrow{PQ} from point P(3,1)P(-3, 1) to point Q(3,2)Q(3, -2), we subtract the coordinates of PP from QQ. The vector components are given by:

PQ=(xQxP,yQyP)\overrightarrow{PQ} = (x_Q - x_P, y_Q - y_P)

Where:

  • xP=3x_P = -3, yP=1y_P = 1
  • xQ=3x_Q = 3, yQ=2y_Q = -2

So, the second (y-) coordinate of PQ\overrightarrow{PQ} is:

yQyP=21=3y_Q - y_P = -2 - 1 = -3

Thus, the second coordinate of PQ\overrightarrow{PQ} is 3-3.

Would you like further details or have any questions? Here are some related questions for practice:

  1. What is the first (x-) coordinate of the displacement vector PQ\overrightarrow{PQ}?
  2. How do you find the magnitude of the vector PQ\overrightarrow{PQ}?
  3. What is the direction of the vector PQ\overrightarrow{PQ}?
  4. How can you represent the vector PQ\overrightarrow{PQ} in terms of its unit vector?
  5. What are the properties of displacement vectors in general?

Tip: A displacement vector describes the change in position from one point to another. It's calculated by subtracting the initial point's coordinates from the final point's coordinates.

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Math Problem Analysis

Mathematical Concepts

Vectors
Coordinate Geometry
Displacement Vectors

Formulas

Displacement vector formula: \(\overrightarrow{PQ} = (x_Q - x_P, y_Q - y_P)\)

Theorems

None

Suitable Grade Level

Grades 8-10