Loading...

#36980

applications

polynomials

functions

medium

90 sec

The total distance $d$ , in meters, traveled by an object moving in a straight line is modeled by a quadratic function of time $t$ , in seconds. It is known that the object started at a distance of 5 meters from a reference point when $t = 0$ . Which of the following statements must be true about the quadratic function $d (t) = a t^{2} + b t + c$ ?

A.

The value of $a$ must be positive.

B.

The value of $b$ must be zero.

C.

The value of $c$ must be 5.

D.

The function $d (t)$ must represent acceleration.