Digital SAT Math Practice Question #2388
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Desmos Hack: Graph the function and inspect the curve's features (vertex, intercepts, asymptotes) or evaluate points directly.
$g(1) = 2(1) + k = 2 + k$. Then $f(2 + k) = 5(2 + k) - 2 = 10 + 5k - 2 = 8 + 5k$. Set $8 + 5k = 13 \implies 5k = 5 \implies k = 1$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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