Digital SAT Math Practice Question #2246
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Desmos Hack: Type the expression into Desmos directly to locate vertices, roots, and intersections effortlessly.
Substitute $x = -4$: $(-4)^2 + k(-4) - 20 = 0 \implies 16 - 4k - 20 = 0 \implies -4 - 4k = 0 \implies -4k = 4 \implies k = -1$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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