If $t$ is a real number, what is the maximum possible value of the expression $-t^2 + 8t -4 +5t^2 - 4t + 18$?

wiseowl Nov 22, 2023

#1**+1 **

*If $t$ is a real number, what is the maximum possible value of the expression $-t^2 + 8t -4 +5t^2 - 4t + 18$?*

When you combine like terms, you get 4t^{2} plus some other

stuff, but the square is all we're interested in for this problem.

The 4t^{2} indicates that this curve is a parabola that opens .

upward. Since it opens upward, there is no maximum value,

_{.}

Bosco Nov 22, 2023