Question

Find the magnitude & direction of the vector JK given points J(-6,-4) & K(-10,-4).
a. 4 units; 0 degrees

b. 4 units; 180 degrees

c. 16 units; 0 degrees

d. 16 units; 180 degrees

Answer 1

vector JK is the vector that starts at J and ends at K

Answer 2

we can depict it with an arrow

Answer 3

I know that the magnitude is 4 units but I don't know what the direction is ?

Answer 4

magnitude vector JK = magnitude vector ( K - J )

Answer 5

in math we usually measure angles counterclockwise from the x axis (east)