Question

If the gradient of a line,C, is 2/3, what is the gradient of a line which perpendicular to C

Answer 1

Gradient of a line times the gradient of a line that is perpendicular to it is-1
M1M2=-1
2/3 times M2=-1
M2=-1 times 3/2
The gradient is =-3/2

Answer 2

Answer:

see attachment

Step-by-step explanation: