Question

Which equation represents the relationship shown in the graph?
(picture coming below)

a) y = x

b) y = x - 1

c) y = 1 over x

d) y = x + 1

Answer 1

It'd be 'C'.

Answer 2

how?

Answer 3

You can mostly deduct this by observing that :
- the relationship line is 'curved', so the relationship isn't direct (like, y=x would make a straight line since both coordinates are the same : going off of this, y=x-1 would have the same look, but shifted because of the -1, same with y=x+1)

Answer 4

Also you can see it in the coordinates, like
one point is 4,1/4
y=1/x
if you plug in x=4, you'd get 1/4