Digital SAT Math Practice Question #2260
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.
Maximum of concave-down parabola is at vertex: $x = -b/(2a) = -40 / (2 \times -2) = 10$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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Let \( P(x) = x^4 + ax^3 - 7x^2 + bx - 12 \), where \( a \) and \( b \) are constants. When \( P(x) \) is divided by \( ...