Input and Output tables from Graphs

Remember that every graph has an $X$X-axis and a $Y$Y-axis.

The numbers on the $X$X-axis are sometimes called the inputs, while the numbers on the $Y$Y-axis are called the outputs.

We're going to practice completing tables of inputs and outputs given a graph.

Worked Example

Question 1

Given the following graph, fill in the table.

$X$X	$2$2	$4$4	$6$6	$8$8	$10$10	$12$12	$14$14	$16$16
$Y$Y

 

 

Notice on the graph that when the input $X$X is $2$2, the output $Y$Y is $1$1.

We can fill this output in the table.

$X$X	$2$2	$4$4	$6$6	$8$8	$10$10	$12$12	$14$14	$16$16
$Y$Y	$1$1

We can use this method to fill in the entire table like so.

$X$X	$2$2	$4$4	$6$6	$8$8	$10$10	$12$12	$14$14	$16$16
$Y$Y	$1$1	$2$2	$3$3	$4$4	$5$5	$6$6	$7$7	$8$8

Further Examples

Question 2

Question 3