Direct Variation
1. In an equation, y varies directly with x. If y=72 when x=12, what is the value of x when y=48? 6 8 9 12 2. In an equation, y varies directly with x. If y=42 when x=56, what is the value of x when y=18? 24 28 32 36 3. In an equation, y varies directly with x. If y=55 when x=22, what is the value of x when y=85? 17 28 34 42 4. In an equation, y varies directly with x. If y=-40 when x=5, what is the value of x when y=-4? -1 -2 2 1 5. In an equation, y varies directly with x. If y=208 when x=13, what is the value of x when y=-144? -12 -9 8 12