Question

Find the inner product for (4, 8) * (6,-3) and state whether the vectors are perpendicular.

Answer 1

Answer: B

Step-by-step explanation:

the inner product of (a,b) * (c,d) is ac + bd

= 4 * 6 + 8 * -3

= 24 - 24

= 0

since the inner product is equal to 0, the vectors are perpendicular

answer is b

Answer 2

Answer:

b) 0; yes

Step-by-step explanation:

a•b = (x1 × x2) + (y1 × y2)

= (4 × 6) + (8 × -3)

= 24 - 24

= 0

Hence they are Perpendicular