**1** An archer shoots an arrow into the air such that its height at any
time, *t*, is given by the function *h*(*t*) = -16*t*^{2 }+ *kt* + 3. If the maximum
height of the arrow occurs at time *t* = 4, what is the value of *k*?

(1) 128 (3) 8

(2) 64 (4) 4

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**2** The magnitude (R) of an earthquake is related to its intensity (*I*)
by *R* = log (I/T), where *T* is the threshold below which the earthquake
is not noticed. If the intensity is doubled, its magnitude can be represented
by

(1) 2(log *I* - log *T*)

(2) log *I *- log *T*

(3) 2 log *I* - log *T*

(4) log 2 + log *I* - log *T*

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**3** Jacob is solving a quadratic equation. He executes a program on his
graphing calculator and sees that the roots are real, rational, and
unequal. This information indicates to Jacob that the discriminant is

(1) zero (3) a perfect square

(2) negative (4) not a perfect square

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**4** Camisha is paying a band $330 to play at her graduation party. The
amount each member earns, d, varies inversely as the number of
members who play, *n*. The graph of the equation that represents the
relationship between *d* and *n* is an example of

(1) a hyperbola (3) a parabola

(2( a ine (4) an ellipse

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