Question

the value of m for which the lines 3x = y-8 and 6x + my + 16 = 0 coincide is
a) 2
b) -2
c) 1/2
d) -1/2


please explain​

Answer 1

Answer:

b)-2

Step-by-step explanation:

For coincide lines ,

$\frac{a1}{a2} = \frac{b1}{b2} = \frac{c1}{c2}$

$\frac{3}{6} = \frac{ - 1}{m} \\ \frac{ - 1}{m} = \frac{1}{2} \\ m = - 2$