Digital ACT Math Practice Question #1454
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
x = -12/(-4) = 3. y = -18 + 36 - 11 = 7. Vertex = (3, 7).
X_v = -b / (2a) = -12 / (2 * -2) = -12 / -4 = 3. y_v = -2(3)^2 + 12(3) - 11 = -2(9) + 36 - 11 = -18 + 36 - 11 = 7. Vertex is (3, 7)....
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