What is one idea that Andre probably understands about rotations?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

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