SAT Math Practice Question #2335 (Medium) | Test Citadel
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SAT Math Difficulty: Medium

Digital SAT Math Practice Question #2335

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

For the polynomial $f(x) = 2x^3 - kx^2 + 5x - 6$, if $f(1) = 0$, what is the value of $k$?
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Socratic AI Engine Step-by-Step Derivation
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⚡ 15-Second Desmos Speed Hack

Desmos Hack: Graph the expression or check points using the table feature in Desmos for instant validation.

Masterclass Solution & Distractor Trap Analysis

Substitute $x = 1$: $2(1)^3 - k(1)^2 + 5(1) - 6 = 0 \implies 2 - k + 5 - 6 = 0 \implies 1 - k = 0 \implies k = 1$....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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