Answer:
7m= (-14, 21) and m+n = (-10, 12)
Explanation:
Given the following vectors
m =(-2, 3) and n=(-8, 9)
7m = 7(-2, 3)
7m = [7(-2), 7(3)]
7m = (-14, 21)
m+n = (-2, 3) + (-8, 9)
m+n = (-2-8, 3+9)
m+n = (-10, 12)
Hence the vector form of 7m and m+n are (-14, 21) and (-10, 12) respectively
