hi
hopefully you will be able to understand feel free to comment if you don’t understand anything and i’ll do my best to help.
so first you need to label your axes. for the test scores go up by 10 (10,20,30,40,etc.)
then the hours of sleeping just go up by 1
and then simply plot the points
for example: the first point is (6,74)
6 is the x value or the hours of sleep so you would go to the part of the axes labeled 6.
74 is the y value and so you would go up on the test scores towards an estimate of whereabouts 74 is.
then plot the point where the two values meet and repeat for the rest of points on the graph.
i hope this helps
have a nice day :)