Consider samosa as x
consider french fries as y
x=1/2y is the equation.

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u have to give the question properly \
but the question is like that only
you can put xand y and then do the equation
ohh u need the co-ordinate ponts
sry points
The Brainliest Answer!
Let the calories given by Samosa be 'x' and that by French fires be 'y'.
So, the equation would be
Calories given by Samosa = ½Calories
given by French fries
x = ½y
Or 2x = y

For graph,
We need minimum two points to plot a graph.
Finding coordinates-
If x=2 ; y = 1
Coordinates of point A (2,1)

If x= 4 ; y = 2
Coordinates of Point B (4,2)

Join these points.It will give you a graph of this equation.
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Hope this one helps! :)
Please mark as best if it deserves :D