Question

9. Which equation could have been used to create the function table? X Y 2 8 5 11 7 13 0 6 O y = x - 4 O y = x + 1 O y = x + 6 O y = 2x + 4

Answer 1

We determine it as follows:

*We test two points on each equation:

*First:

$y=(2)-4\Rightarrow y=-2$

We can see that the first equation could not be used for the table.

*Second:

$y=(2)+1\Rightarrow y=3$

We can see that the second equation could not be used for the table.

*Third:

$y=(2)+6\Rightarrow y=8$

&

$y=(5)+6\Rightarrow y=11$

We can see that the third equation is the one used for the table.