s = 3t² + 9t
1) s(1) = 3•1² + 9•1 = 3 + 9 = 12;
2) s(3,5) = 3•3,5² + 9•3,5 = 36,75 + 31,5 = 68,25;
3) s(5) = 3•5² + 9•5 = 75 + 45 = 120.
s = 3t² + 9t
1) s(1) = 3•1² + 9•1 = 3 + 9 = 12;
2) s(3,5) = 3•3,5² + 9•3,5 = 36,75 + 31,5 = 68,25;
3) s(5) = 3•5² + 9•5 = 75 + 45 = 120.