Digital SAT Math Practice Question #2291
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Desmos Hack: Graph the left and right sides of any equation to instantly view intersection points and filter out extraneous solutions.
$f(3) = 4(3^3) = 4(27) = 108$. $f(2) = 4(3^2) = 4(9) = 36$. Difference: $108 - 36 = 72$....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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