Question

Which t-chart matches the equation y = x^2 - 2?


x y
-2 2
-1 1
0 -2
1 1
2 2

x y
-2 -6
-1 -3
0 -2
1 -1
2 2

x y
-2 2
-1 -1
0 -2
1 -3
2 6

x y
-2 2
-1 -1
0 -2
1 -1
2 2

Answer 1

The fourth chart.

Check: y = x^2 - 2 gives y(-2)=4-2=2, y(-1)=1-2=-1, y(0)=0-2=-2, y(1)=1-2=-1, y(2)=4-2=2, which matches the last table.