Vectors

Find the dot product  $a\cdot b$  

•  $<12,\ -2>$  

•  $10$  

•  $14$  

•  $-5$  

Find the dot product $a\cdot b$

• $12i+10j$

• $34$

• $22$

• $2$

Find the angle between the vectors in degrees.

• $87.8^o$

• $175.6^o$

• $185.6^o$

• $77,8^o$

Find the angle between the vectors in degrees.

• $145.3^o$

• $173.3^o$

• $115.0^o$

• $174.1^o$

Find the projection vector of u onto v.  

•  $<-7.2,\ -2.4>$  

•  $<3,\ 1>$  

•  $<-6.1,\ -2.3>$  

•  $<-9,\ -3>$  

Find the projection vector of u onto v.

• $<7,\ 1>$

• $<3.5,\ 0.5>$

• $<-9.5,\ -1.4>$

• $<-1,\ 7>$

Determine if the vectors are parallel, orthogonal, or neither.

• Parallel

• Orthogonal

• Neither

• Both

Find the magnitude of the vector <-4, -6>.

• 7.211
• 52
• 3.162
• 4.472

Tags

CCSS.HSN.VM.A.1

Find the direction of the vector <2, -5>.

• 292⁰
• 68⁰
• 112⁰
• 22⁰

Tags

CCSS.HSN.VM.A.1

If c=<-5, 4> and d=<8, 0>, calculate 2c+d

• <-2, 8>
• <-2, 0>
• <6, 8>
• <6, 0>