Math Problem Statement

Draw vector 2a and label it.

Solution

The image shows a vector, labeled as a\vec{a}, drawn on a coordinate grid. The prompt on the side in German translates to: "Draw vector 2 a\vec{a} and label it."

Here’s a breakdown of the task:

  1. You are asked to draw a new vector that is twice the length of a\vec{a}, which means scaling a\vec{a} by a factor of 2.
  2. The vector a\vec{a} appears to start at (0,0) and end at (3,2), giving it the coordinates a=(3,2)\vec{a} = (3,2).
  3. To find 2a2 \vec{a}, multiply both components by 2: 2a=2×(3,2)=(6,4)2 \vec{a} = 2 \times (3,2) = (6,4)
  4. Draw this new vector starting from the origin (0,0) and ending at the point (6,4) on the grid.

Would you like more details or any further clarification?

Here are 5 questions related to this:

  1. What is the direction of a vector relative to the x-axis?
  2. How do you scale a vector by a scalar multiplier in general?
  3. What is the difference between vector addition and scalar multiplication?
  4. How would you find the magnitude of vector a\vec{a}?
  5. How can you graphically add two vectors?

Tip: When multiplying a vector by a scalar, only the length changes, not the direction, unless the scalar is negative!

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Math Problem Analysis

Mathematical Concepts

Vectors
Vector Scaling

Formulas

2a = 2 * (x, y)

Theorems

Scalar multiplication of vectors

Suitable Grade Level

Grades 9-11