Question 2 A company that produces cell phones has a cost function of $C = 6z^2 - 145z + 14906$, where C is the cost in dollars and z is the number of cell phones produced (in thousands). How many units of cell phone (in thousands) minimizes the cost function? $z = $ thousand phones produced will minimize C Submit Question
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This is a quadratic function of the form $C(z) = az^2 + bz + c$, where $a = 6$, $b = -145$, and $c = 14906$. Since the coefficient $a = 6$ is positive, the parabola opens upwards, which means it has a minimum value at its vertex. Show more…
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