Question

if joining (1,2) and (5,7) is parallel to line joining (3,4) and (11,x)​

Answer 1

Answer:

-16

Step-by-step explanation:

we know slope of line joining two points (x1,y2)and ( x2,y2) is given by (y2,-y1) (x2-x1). . line are perpendicular means m1- m2 =-1 (x-4)(4)=(-1)(8)(6) x-4=_12 X=-16