Decide whether the function $f(t) = -10 ( t + 1 )( t - 3 )$ is a quadratic function.

If so write the function in standard form, $f(t) = at^2 + bt + c$. Below enter the proper values for the constants $a$, $b$, and $c$ once the function is put in standard form. If one of the constants is zero, be sure to enter 0 and do not leave any of answers blank. Account for subtraction by entering a negative value for the constant. If the function is not quadratic, enter, NA in each blank.

$f(t) =$ $t^2$ + $t$ +