The horizontal component of a vector goes from the start of the vector to ist furthest x-coordinate.
The vertical component goes from the x-axis to the most vertical point on the vector.
For a vector (x,y) the horizontal component is x and the vertical component is y.
For a horizontal vector as given the (x,y) coordinates are (magnitude, 0)
Then, the given vector is (760,0) and has the next components:
Horizontal component: 760
Vertical component: 0