Describe geometrically (line, plane, or all of R³) all linear combinations of a. b. C. 27 13. [1 2 and 6 369023ONN 223 0 and 2 200 0 and 2 and Compute u + v + w and 2u + 2v + w. How do you know u, v, w lie in a plane? [1] -31 2 1 ,W=-3 u=2,v= [3] H

Help. Especailly (C). That a2 is in W, Please how can the vector a2 can be written as the linear combination.

6. Which coordinate grid shows the point represented by (-5, 6)? (6.1B, 6.1E, 6.1F) 4 3 21 1 F 6-5-4-3-2-1 1 23 4 56 -2 -3 -4 -5 y 6F 5 4 3 2 G -5-4 -3 -2 -1 12 3 45 -1 -2 -3 -4 -5 61 5 4 -2 -1 H 6 -5 -4 -3 -2 -1 -1 1 2 3 4 56 -2 -3 -4 -5 61 .5 4. 3 2. 1 6-5 -4-3 -2 -1 1 2 3 4 -1 -2 -3 -4 -5 -61

Q7. Two vectors are defined as A = a,+ 5ay +3a, and B = the following vector is perpendicular to (A+ B) -4a,+4ay 3a,+ 2a, + a,. Which of %D 4ay-7a, ax+ az None of these