Question
1. Find an ordered pair that represents 6 vector v - 5 vector w if vector v =(9,5) and vector w = (6,9).
2. Find an ordered triple that represents 6 vector y + 4 vector z if vector y = (2,6,8) and vector z = (7,-2,6)
3. Find the magnitude of vector WX for W(3, –3, 1) and X(8, –3, –6).
4. Vectors A and B have the same direction. Vector A has a magnitude of 8, and Vector B has a magnitude of 5. What must be true about vectors A and B ? (1 point)
They are opposites and parallel.
They are parallel, but not equal.
They are equal, but not parallel.
They are opposites, but not parallel.
5. Vectors A and B have different, but not opposite directions. Vector A has a magnitude of 7 and vector B has a magnitude of 6. What must be true about Vectors A and B? (1 point)
They are not parallel, opposites, or equal.
They are parallel, but not equal.
They are opposites and parallel.
They are parallel, but not opposites.
2. Find an ordered triple that represents 6 vector y + 4 vector z if vector y = (2,6,8) and vector z = (7,-2,6)
3. Find the magnitude of vector WX for W(3, –3, 1) and X(8, –3, –6).
4. Vectors A and B have the same direction. Vector A has a magnitude of 8, and Vector B has a magnitude of 5. What must be true about vectors A and B ? (1 point)
They are opposites and parallel.
They are parallel, but not equal.
They are equal, but not parallel.
They are opposites, but not parallel.
5. Vectors A and B have different, but not opposite directions. Vector A has a magnitude of 7 and vector B has a magnitude of 6. What must be true about Vectors A and B? (1 point)
They are not parallel, opposites, or equal.
They are parallel, but not equal.
They are opposites and parallel.
They are parallel, but not opposites.
Answers
Steve
6v-5w = 6(9,5)-5(6,9) = (54,30)-(30,45) = (24,-15)
do #2 the same way
|WX| = √(5^2+0^2+7^2) = √74
#4: ║ but ≠
#5: ~║ ~opposites ≠
do #2 the same way
|WX| = √(5^2+0^2+7^2) = √74
#4: ║ but ≠
#5: ~║ ~opposites ≠