Question

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Answer 1

The graph to look at is attached here

Answer 2

from the graph we can see that the slope is -2
we can also see the point (-1,-6) on the graph so with the slop of -2, go down 2 and move right 1, we get the point (0-8) which is the y-intercept
so the equation is y=-2x-8

Answer 3

another way to do this is since we can see that when y=0, x=4, you could have substituted y=0 for all the equations to see which one gives x=4

Answer 4

sorry x=-4

Answer 5

I see nowww thank youuu

Answer 6

no problem