Respuesta :

Answer:

y=-2x

Step-by-step explanation:

y=-2x+b

-4=-2(2)+b

-4=-4+b

b=0

Therefore, y=-2x

Answer:

Hey!

Your answer is y=-2x!

Step-by-step explanation:

Using the formula y=mx + c...

*c is the coordinate for the y intercept in this case!!*

 y=-2x+c

-4=-2(2)+c (the y-value of the given coordinate is replacing y/we times -2 by 2)

-4=-4+c (take away 4 from each side)

c=0

Our final solution is now... y=-2x

HOPE THIS HELPS!!