A weight suspended $on$ a spring $isat$ its equilibrium point $6$ inches above the top $of$ a table. When the weight $is$ pulled down $1\mathrm{.}5$ inches $it$ bounces above the equilibrium point and returns $to$ the point from which $it$ was released $in0\mathrm{.}5$ seconds. Which $of$ these can $be$ used $to$

model the weight's height $h$ above the table $as$ a function $of$ time $tin$ seconds?

$a.h=-1\mathrm{.}5sin(2t)+6$

$b.h=-3cos(t)+4\mathrm{.}5$

$c.h=-1\mathrm{.}5cos(4t)+6$

$d.h=-3cos(0\mathrm{.}5t)+4\mathrm{.}5$