Cannot show the graphs, but will show the new coordinates.

Graph 1:

(-1,2), (0,0), (2,3), (5,0), (8,-1).

Graph 2:

2) Create a new graph by horizontally stretching the graph you created in 1) by a factor of 2.

Multiply all the x-coordinates by 2, while leaving alone all the y-coordinates.

(-2,2), (0,0), (4,3), (10,0), (16,-1).

Graph 3:

3) Create a new graph by vertically stretching the graph you created in 1) by a factor of 3.

Multiply all the y-coordinates by 3, while leaving alone all the x-coordinates.

(-1,6), (0,0), (2,9), (5,0), (8,-3).

You may graph those on paper if you like.