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Use the vectors drawn at right to complete the parts below. 

  1. Rewrite each vector in both component and form.

  2. Determine each vector’s standard angle.

    Solve . This will solve for the angle in the slope triangle for A.
    Recall that the standard angle is measured from the positive -axis.

  3. What are  and  ?

  4. Determine .

    The double bars mean "the magnitude of". To calculate the magnitude of vector B, use the Pythagorean Theorem.

2 rays on grid, left labeled ray, A, running left 1 & up 3, right labeled ray, B, running right 4 & up 3.