Linear relationships show a steady increase or decrease between two variables.

In this case, distance and time have a linear relationship as the distance is 25 times the value of the time. As 1 variable goes up the other variable increases in a similar manner.

Non-linear relationships do not show a steady increase or decrease between two variables.

It usually shows a curved relationship or even circular.

To graph linear relationships, you need to first set up a T-Chart.

Then you insert values for “X” and find out the corresponding values for “Y”. In this case when X = -3, then Y = 1 and when X = -2 then Y = 2.

Once you have values for X and Y, you can use those values as co-ordinates and plot that on the Cartesian Plane.

To graph non-linear relationships, you need to first set up a T-Chart.

Then you use your knowledge of linear equations to solve for X and Y values, once you have a table, you can then use those values as co-ordinates and plot that on the Cartesian Plane.

Just remember, when you square a negative number, the resulting answer is always positive!