Are the following numbers a function; 6,5; 6,7; 6,6; 5,7

Working on itts i’m going to need you to me as i go along 1-5

Asquare parking lot has 6,400 square meters what is the length in meters

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