How does y vary with x

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

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Write the expression 7x^3-28xy^2 as the product of 3 factors