Linear Relations

Consider the equation $y=x$`y`=`x`. A table of values is given below.

$x$x |
$-1$−1 | $0$0 | $1$1 | $2$2 |
---|---|---|---|---|

$y$y |
$-1$−1 | $0$0 | $1$1 | $2$2 |

a

Plot the points in the table of values.

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b

Is the graph of $y=x$`y`=`x` linear?

No

A

Yes

B

No

A

Yes

B

Easy

Approx a minute

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Graph lines by hand, using a variety of techniques