Question

Find the value of k, so that the equations -3x – 4y + 5 = 0
and x + ky + 15 = 0 have a unique solution.


plss ans fast guys.

Answer 1

Step-by-step explanation:

if the lines have unique solution then they are intersecting lines .

so we know for intersecting line a1/a2=b1/b2

here a1=‐3 and b1=‐4 , a2=1 and b2=k

so applying we get -3/-4=1/k

3/4=1/k

therfore k=3/4

the value of K =4