## Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition

$t(-11)=-638$ $t(4)=-68$
$t(x)=-5{(x)}^{2}+3x$ $t(-11)=-5{(-11)}^{2}+3(-11)$ $t(-11)=-5(121)-33$ $t(-11)=-605-33$ $t-11)=-638$ $t(4)=-5{(4)}^{2}+3(4)$ $t(4)=-5(16)+12$ $t(4)=-80+12$ $t(4)=-68$