Question

Find the value of k for which the lines (k+1)x + 3ky +15 = 0 and 5x+ ky+ 5 =0 are councident ?

Answer 1

Answer:

Step-by-step explanation:

the lines coincide

if and Only if

(k + 1)/5 = 3k/k = 15/5

if and Only if

(k + 1)/5 = 3

if and Only if

k + 1 = 15

if and Only if

k = 14.