Question

The slope of the line perpendicular to y = 3/4 x - 7 is

A. 3/4
B. -4/3
C. 4/3
D. -3/4

Answer 1

3/4

Answer 2

Y=aX+b a is the slope, so the answer is A

Answer 3

b

Answer 4

@andy: she doesnt want the slope of this line but the slope of a line perpendicular to it (ap) which is with your equation y=a*x+b ap=-1/a

Answer 5

b.
the reason it is not a. is because parallel lines have the same gradient, hence a parallel line would have slope 3/4 (the number in front of the x). Perpendicular lines have -1/m gradient, in your case m=3/4. So the perpendicular line has -1/(3/4) =-4/3.
Answer b.

Answer 6

hmmm