SOLUTION: Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value. f(x) = x2 - 2x - 5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value. f(x) = x2 - 2x - 5      Log On


   

Question 1003189: Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.
f(x) = x2 - 2x - 5
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Roots ;

What happens in the exact middle of the two roots? More simply stated, what happens for x=1? Also, the positive coefficient on x%5E2 tells you the function has a minimum.