Question

Find the value of k for which the following pair of linear equation have infinity many solutions 2x-y+8=0 , 4x-ky+16=0

Answer 1

Answer:

(2x-y+8=0)×2

4x-2y+16=0

4x-ky+16=0

- + -

__________

-2y+ky=0

y(k-2)=0

k-2=0

k=2