Consider the image of abc for the translation (x, y) --> (x + 4, y - 2). what is the ordered pair of c'?

What can you determine about the solutions of this system

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

Could someone with number 1 and 2