I need help understanding linear tranformations. The question asks:
Which of the following transformations are linear?
A. y1 = 8, y2 = 7, y3 = 2
B. y1 = 6x1, y2 = 5
C. y1 = -10x1, y2 = 9x1, y3 = 4x1
D. y1 = 0, y2 = 7x1
E. y1 = 0, y2 = x1x2
F. y1 = 8x1 + x2, y2 = -x1
What am I supposed to do here?