Question

Find the magnitude of the vector (6,-3) to the nearest tenth.

Answer 1

Because by the formula is root x^2 + y^2 .

Answer 2

for the same reasons as triangles, the magnitude is

\[\sqrt{x^2 + y^2}\]

and since it is the magnitude of a vector, you take the principle root (the positive root). which is the absolute value for what i wrote above.