Vectors in a plane

Question 1 of 10

The magnitude of the vector (−5, 12) is ___.

Question 2 of 10

If a = (6, −5) and b = (−6, 5), find a + b.

Question 3 of 10

The points A(3, −1) and B(−1, 7) are given. (a) Find the vector AB. (b) Find |AB|, correct to 2 decimal places. (c) Find the coordinates of the midpoint M of AB.

Question 4 of 10

Two vectors are equal if they have

Question 5 of 10

The points A(2, −2) and B(−4, −4) are given. (a) Find the vector AB. (b) Find |AB|, correct to 2 decimal places. (c) Find the coordinates of the midpoint M of AB.

Question 6 of 10

Which of these is a scalar quantity?

Question 7 of 10

The magnitude of the vector (8, −15) is ___.

Question 8 of 10

If a = (2, 4), find 3a.

Question 9 of 10

The magnitude of (3, 4) is 5.

Question 10 of 10

If a = (1, 3), find 3a.