Answer:
B
Step-by-step explanation:
Given a line with slope m then the slope of a line perpendicular to it is
= - = - = → B
take two points on the line ,i take (-4,0) and (0,-2)
slope=(y2-y1)/(x2-x1)=(-2-0)/(0+4)=-2/4=-1/2
I think the answer for x is 1