Vectors and dot product

u + v

• 4i - j

• 6i + j

• 3j + 4j

• i + 6j

Tags

CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

u*v

• -82

• -58

• 82

• 58

4w*-3u

• -1680

• 1200

• -1200

• 1680

Find the angle between v and w

• 21.8 degrees

• 111.8 degrees

• 68.2 degrees

What is the projection of a = –2i + 5j onto b = 3i – 7j ?

What type of quantity is produced by the dot product of two vectors?

• scalar
• vector