Math Problem Statement

Describe how you would use a graphical method to add vector u = <2, -5> to vector v (shown in the graph). Then, write the resultant vector in component form.

Solution

To solve this problem, let's go through the steps to add vector u=2,5\mathbf{u} = \langle 2, -5 \rangle to the vector v\mathbf{v}, which is displayed in the graph.

Steps for Vector Addition

  1. Determine the coordinates of vector v\mathbf{v}: To add the vectors graphically, we first need the coordinates of v\mathbf{v} (which is not provided directly in the question). We will assume the vector v\mathbf{v} has coordinates based on where it ends on the graph. Let’s approximate these coordinates if they're visible.

  2. Graphical Addition: To add vector u\mathbf{u} to v\mathbf{v} graphically, start from the tip (endpoint) of v\mathbf{v}. From that point, move according to the components of u\mathbf{u}:

    • Move 2 units to the right (positive xx-direction).
    • Move 5 units down (negative yy-direction).

    Mark this new endpoint, which represents the endpoint of the resultant vector v+u\mathbf{v} + \mathbf{u}.

  3. Resultant Vector in Component Form:

    • Suppose v=a,b\mathbf{v} = \langle a, b \rangle.
    • The resultant vector v+u\mathbf{v} + \mathbf{u} would then be a+2,b5\langle a + 2, b - 5 \rangle.
  4. Write the Final Answer: Once we know the coordinates of v\mathbf{v}, we can add the components directly and present the resultant vector.

If you can provide the coordinates for v\mathbf{v} from the graph, I can give the exact resultant vector in component form. Let me know if you'd like more assistance on this!


Would you like a detailed explanation of vector addition or have any specific questions?

Related Questions to Expand Understanding:

  1. How do you determine the magnitude of a vector?
  2. What is the difference between graphical and algebraic vector addition?
  3. How can we find the direction of a vector in a plane?
  4. What are some real-life applications of vector addition?
  5. How does scalar multiplication affect a vector’s direction and magnitude?

Tip:

When performing vector addition, always make sure to account for direction.

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Math Problem Analysis

Mathematical Concepts

Vector Addition
Graphical Representation of Vectors
Vectors in a Plane

Formulas

Resultant vector in component form: ⟨a + 2, b - 5⟩

Theorems

Vector Addition Theorem

Suitable Grade Level

Grades 9-10