Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Click the item once to select it.
Then click the location where it belongs.

Plot the data points on the graph below and use the corresponding dot colors: 1st data point - blue, 2nd data point - yellow, 3rd data point - green, 4th data point - red.

x values y values
0.5 4
1 8
2 16
3 24
(Direct relationship, k = 8)