Question

if A=(1,-2) and B=(4,k) and C=(7,2) and D=(k,4) where line AB is perpendicular to line CD . find K​

Answer 1

Answer:

k = 17/5

Step-by-step explanation:

the slope of AB = k+2/4-1

the slope of CD = 4-2/k-7

if AB is perpendicular to CD

then, k+2/4-1= -(k-7)/2

then k = 17/5