Which statements are true about y Less-than-or-equal-to 8 and its graph? Check all that apply. y = 0 is part of the solution set. y = 8 is part of the solution set. y = 10 is part of the solution set. There is an open circle on the graph at 8. There is a closed circle on the graph at 8. The arrow on the graph points left. The arrow on the graph points righ