6/2(1+2)+1-1+1-1+1-1​

SO do the one in the paranthesis first.

So we will get 3 in the () section

6/2(3)+1-1+1-1+1-1

:/

9

= 6/2*(1+2)+1-1+1-1+1-1

= 6/2*(3)+1-1+1-1+1-1

= 6/2*3+1-1+1-1+1-1

= 3*3+1-1+1-1+1-1

= 9+1-1+1-1+1-1

= 10-1+1-1+1-1

= 9+1-1+1-1

= 10-1+1-1

= 9+1-1

= 10-1

= 9

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