Question

Find the discriminant of the function f(x) = x2 - 4x + 5 and determine how many roots the function has.


A)
-36; 1 real root


B)
-36; 2 imaginary roots


C)
-4; 1 real root


D)
-4; 2 imaginary roots

Answer 1

Determinant is \(b^2 - 4ac\). Do you know what \(a,b\) and \(c\) mean?