Digital ACT Math Practice Question #1425
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
b^2 = 4ac -> 144 = 12k -> k = 12.
B^2 - 4ac = (-12)^2 - 4(3)(k) = 144 - 12k = 0 -> 12k = 144 -> k = 12....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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