Given the table of points below, determine the equation of the line that would pass through all the given poi

Given the table of points below, determine the equation of the line that would pass through all the given points.

X Y
-1 2
0 0
1 -2

You essentially only need two of these points to set up the equation and this will work with either. I would use the first and second because the second is obviously easier.
Use the equation y=mx+b

Plugging in the middle point where y=0 and x=0, you get:
0=m(0)+b, which means b=0 when solving.

Next, you can use the top or bottom point. I'll use the top:

y=mx+b again where y=2, x=-1, and b=0 (from above)

so, 2=m(-1)+0
solving for m: m=-2

so, your final equation is y=-2x
hope that helps!