A - 12 = -34
a = -34 + 12
a = -22
Y = 2x - 8 is perpendicular to 6x+12y=24 and passes through (4,0)
True, they all have different values !
7P2, so 42 ways - permutation method since the order of choosing matters (chair and vice chair)
Okay sorry but this question is actually a little simple if you think less