Question

For what value of K, do the equationsame 4x-y+5=0, 8x-KY+10=0 represent coincident line? Choose the correct option.
A) 1/2
B) 2
C) -1/2
D) -2

Answer 1

Answer:

Answer is 2

Step-by-step explanation:

4x-y+5=0

4x=-5+y

x=-5+y/4

8x-ky+10=0

8x=-10+ky

-x=-10+ky/8

x=x

-5+y/4=-10+ky/8(cross multiple)

8(-5+y/4)=4(-10+ky/8)

-40+8y=-40+4yk

-40+40+8y=4ky

0+8y=4ky

8y=4ky

8y/4y=k

2=k