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\label{About_Numerical_and_Formula_Response}\index{Numerical Response}

Numerical Response problems are answered by entering a number and an optional
unit. For instance, a numerical response problem might have an answer of
$2m/s^{2}$. Formula Response problems are answered by entering a mathematical
formula. For instance, a formula response problem might have an answer
of $x^{2}+11$. The answer may be in any equivalent format. For instance,
for $x^{2}+11$, the system will also accept $x*x+11$ or $x^{2}+21-10$.

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