Answer:
About 72.23 metres
Step-by-step explanation:
Use Pythagorean Theorem to figure out all of the missing sides and then add them up. There are four right triangles you can do this with.
x=-2, y=-4. (-2, -4).
2x-y=0
y=x-2
------------
2x-(x-2)=0
2x-x+2=0
x+2=0
x=0-2
x=-2
y=-2-2=-4
which numbers do you need to know
28 = 8k
(x,y)
so (8,28)
y = kx is a direct proportional formula.
y=-2x+3