Respuesta :

y = -2x, because the slope is going downwards and as x increases by 1, y decreases by 2 and there is no y-intercept (x = 0 means y = 0)
Slope is rise over run.
In this case, rise is -2 over a run of 1.
-2/1=-2
In slope intercept form, the answer is A, y=-2x