The table shows a linear function above.

step 1) determine the difference of outputs of any two i outs that are 1 unit apart. show your work.

step 2) determine the difference of outputs of any two i outs that are 2 units apart. show your work.

step 3) determine the difference of outputs of any two inputs that are 3 units apart. show your work.

step 4) what do you notice about the ratios of the differences in the outputs to the input intervals? explain your answer.