Before beginning voice lessons, justin already knew how to sing 1 piece, and he expects to learn 2 new pieces during each week of lessons. write an equation that shows the relationship between the number of weeks x and the number of pieces learned y. then graph.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0