Sub in each x value to find y. If the y value you find is the same as the y coordinate that goes along with that x value, then you have your point. When x is 1, y = 1.5*1/2 which is .75. That first coordinate is a point on that graph. Let's do one that doesn't work so you can see. Use (2, 5).
which simplifies down to
. 1.5/4 = .375, not 5. See?