-6x+4y=-4 -6x+2y= 4 solve for x and y

Step-by-step explanation:

hello :  -6x+4y=-4(*)

          -6x+2y= 4...(**)

by (*) : -6x= -4y-4

by(**) : -6x = -2y+4

so :   -4y-4=-2y+4

     -2y = 8

y=-4

put this value in (*) : -6x+4(-4)= - 4

-6x=16-4=12

x=-2

i think it would be 42cm

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c