Respuesta :

smartguy0365
It is answer choice D because when x=1, 2×1=2, and it is true that y=2.
Equation of the line 
y = mx +b

We can see that y-intercept is 0.
So, b=0.
y= mx
m is a slope and m = rise/run = 2/1=2

Answer is D. y= 2x

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