The line through A(–2, 3) & B(4, b) is perpendicular to the line 2 – 4y = 5. Find the value of ‘b’
b = –9
b = –6
b = 9
b = –8
b = 6
A line through A(-2,6) and B(4,b) is perpendicular to the line 2x - 4y = 5. The value of b is ___.