SAT Math Practice Question #1652 (Medium (570)) | Test Citadel
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SAT Math Difficulty: Medium (570)

Digital SAT Math Practice Question #1652

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

The function \(f(x) = (x - 2)(x + 8)\) has x-intercepts at \(x = 2\) and \(x = -8\). What is the x-coordinate of the vertex of the parabola?
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Vertex x-value is the average of roots: (2 + (-8)) / 2 = -6 / 2 = -3.

Masterclass Solution & Distractor Trap Analysis

The vertex of a parabola lies exactly midway between its two x-intercepts: \(x = \frac{2 + (-8)}{2} = \frac{-6}{2} = -3\)....

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

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