Slope of the line passing through (7,-5) and (3,11) =

= -4
As two lines are perpendicular to each other, so when their slopes are multiply by each other, the answer will be -1
so the slope of the line passing through (-3,-9) and (5,n) will be

So will will get a formula below

and the answer will be n=
I would graph this to visualize it, and then do rise over run, or y/x to find the slope... Or you can use the formula y1-y2/x1-x2... where y1 is 8, y2 is 5, and the same with x... Hope this helps ;)
Answer:
I believe it is B.
Step-by-step explanation:
y=mx+b
y=mx+3
y= -1/2x+3
Answer:
(0,6) (0,-12)
Step-by-step explanation:
Yes...........................
How?