**A Vector:**

“i” is the horizontal component

“j” is the vertical component

**Magnitude, Angle, and Component Equations:**

**Negative vector:**

A vector that is negative, has the same magnitude, but the opposite direction.

**Vector Addition:**

Just add the components together.

The tail of the first vector to the head of the second vector.

**Vector Subtraction:**

Just subtract the components together.

The tail of the first vector to the head of the second vector in opposite direction (as -vector is just the vector but opposite direction).

**Vector multiplication with constant/scalar:**

Just multiply the constant into the components

**Unit Vector:**

Just a vector with magnitude 1, but also a direction, so basically just a direction.

**Unit vector along the x-axis:**

i-hat

**Unit vector along the y-axis:**

j-hat

**Unit vector along the z-axis:**

k-hat