Practice 5-2 Direct Variation Determine whether each equation represents a direct variation. If it does, find the constant of variation. 1. -8y = 2x

3. solve by graphing: y = 2x + 6 x + y = -3

The triangles are similar. what is the value of x? show your work.

The plant were you work has a cylindrical oil tank that is 2.5 feet across on the inside and 10 feet high. the depth of the oil in the tank is 2 feet. about how many gallons of oil are in the tank?