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Advanced MathEasyEvaluating a shifted exponential

Advanced Math practice question

The function s is defined by s(x) = 2ˣ + 3. What is the value of s(2)?

Answer: 7

s(2) = 2² + 3 = 4 + 3 = 7.

Common wrong answers

If you answered 8
8 is 2³, again mixing the +3 into the exponent.
If you answered 10
10 is 2 × 2 + 3 + 3, adding the 3 twice; s(2) = 2² + 3 = 7.
If you answered 32
32 is 2⁵, adding the 3 to the exponent instead of to the result.

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