1. write an equation for the line graphed. a. y=2/3x-3 b. y=2/3x+3 c. y=3/2x-3 d. y=3/2x+3 2. write an equation for the line graphed. a. x=3 b. y=3 c. y=3x d. y=3x+1 3. graph on a coordinate plane each set of (x, y) values. which set of values describes two quantities that are in a proportional relationship? a.(2, 7)(0, 2)(3, 9) b.(1, 5)(2, 7)(3, 9) c.(4, 9)(2, 4.5)(0, 0) d.(1, 3.5)(0, 1)(2, 6)