Question

Which of the following rules could represent the function shown in the table?


x y
-1 -1
0 1
1 3
f( x ) = -2 x
f( x ) = 2 x - 1
f( x ) = 2 x + 1

Answer 1

The rule that could represent the function shown in the table is f( x ) = 2 x + 1. This is because when we substitute the given x-values into the expression, we get the corresponding y-values in the table.