Digital ACT Math Practice Question #1235
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Vertex $x = -(-12)/6 = 2$. Plug into $g(2) = 12 - 24 + 19 = 7$.
Since the leading coefficient $a = 3 > 0$, the parabola opens upward, and the minimum occurs at the vertex. The $x$-coordinate of the vertex is: $$x = -\frac{b}{2a} = -\frac{-12}{2(3)} = \frac{12}{6} = 2.$$ The minimum value is the $y$-valu...
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