SAT Math Practice Question #2387 (Medium) | Test Citadel
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SAT Math Difficulty: Medium

Digital SAT Math Practice Question #2387

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

Let $f(x) = \sqrt{2x + 6}$. What is the domain of $f(x)$?
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Socratic AI Engine Step-by-Step Derivation
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⚡ 15-Second Desmos Speed Hack

Desmos Hack: Graph the function and inspect the curve's features (vertex, intercepts, asymptotes) or evaluate points directly.

Masterclass Solution & Distractor Trap Analysis

The expression inside the radical must be non-negative: $2x + 6 \ge 0 \implies 2x \ge -6 \implies x \ge -3$....

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

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