Question

Robert has used the given graph to fill the input-output table.

Input ($x$)	Output ($y$)
$-8$	$-6$
$-2$	$-2$
$2$	$-4$
$6$	$-10$

The incorrect pair Robert filled in the given table is _____.

Answer 1

For the graph or equation, $(x,y)$ is an ordered pair, where y is the output when $x$ is the input.
According to the graph,
when the input $=-6$, the output $=-8$. It implies that $(-6,-8)$ is an ordered pair.
when the input $=-2$, the output $=-2$. It implies $(-2,-2)$ is an ordered pair.
when the input $=2$, the output $=4$. It implies $(2,4)$ is an ordered pair.
when the input $=6$, the output $=10$. It implies $(6,10)$ is an ordered pair.
when the input $=-8$, the output is not equal to $-6$. It implies $(-8,-6)$ is not an ordered pair of the graph.
The incorrect pair Robert filled in the given table is $(-8,-6)$.