Which of the following graphs represents the soution set for 5x - 10y gt 6 ?
Answer»
Solution :Rewrite the inequalityin slope-intercept from and then IDENTIFY which half-should be shaded. Substract 5x from both sides of the inequality, divide both sides by `-10,` and flip the inequality symbol to yield `y lt 1/2 x -3/5.` Eliminate (A) and (D)because they have positive y-intercepts. The "less than" symbol INDICATES that the half-plane below the LINE should be shade3d, making (C ) is CORRECTANSWER.