Answer:
2
Step-by-step explanation:
Given
< x₁, y₁ > and < x₂, y₂ > , then
the dot product is calculated as
x₁ x₂ + y₁ y₂
Given u = < 7, 4 > and v = < 2, - 3 > , then
u • v
= (7 × 2 ) + (4 × - 3 )
= 14 + (- 12)
= 14 - 12
= 2
