### Home > CALC3RD > Chapter Ch9 > Lesson 9.3.1 > Problem 9-79

9-79.

A vector has an initial point of

Draw the vector on your resource page and write it in both component and

form.Calculate the magnitude and direction of the vector.

The magnitude is the length of the vector. Sketch a "slope triangle" and

use the Pythagorean Theorem to calculate the length of the vector.

Use inverse tangent to determine the direction of the vector.

Recall that the direction is measured counterclockwise from the positive -axis.