To make a table with a function, you must have a set of inputs. In this case they'll be {2, 1, 0, -1, -2}
Then you plug in each input to find the output.
y=-2(2)-3
y=-4-3
y=-7
y=-2(1)-3
y=-2-3
y=-5
y=-2(0)-3
y=0-3
y=-3
y=-2(-1)-3
y=2-3
y=-1
y=-2(-2)-3
y=4-3
y=1
x: 2, 1, 0, -1, -2
y: -7, -5, -3, -1, 1
