By looking at the graph, we can state that:
a) FALSE. the coordinate (1,10) does not belong to the line.
b) FALSE Since the line ends with an arrow, it means that it goes beyond x =10
c) True. if we move along the x axis from lef to right, we cans ee that for every 2 units to the right (songs) the line goes 2 units up (2 dollars)
d) TRUE If we move one unit to the right ( 1 song) the line goes up 1 unit ( one dollar)