What is the maximum value of \(-4z^2+20z-6\)
-4z^2 + 20z - 6
The z that will maxmize this occurs at
-20 / [2 * -4] = -20/-8 = 5/2 = 2.5
Subbing this back into the function, the max value is
-4(2.5)^2 + 20(2.5) - 6 =
19
Your're smart! Thanks!
