Question

What is the maximum value of f(x)=−4x2+4x−2?

Answer 1

Answer: -1

Step-by-step explanation: A typical quadratic equation is $ax^{2} +bx+c$ and the maximum value formula is -b/2a, so let plug it in -4/2(-4) which equals 1/2. Then let plug 1/2 into the equation,

-4(1/2)^2+4(1/2)-2=

    -1+2-2=

          -1