4
lesson pretestMultiple Choice

Pretest

Question 4 • Math 3

Which equation is equivalent to log sub 3 of open paren x plus 5 close paren is equal to 2 ?

Answer
A
2 cubed is equal to x plus 5
B
3 squared is equal to x plus 5
C
3 squared is equal to log sub 3 of open paren x plus 5 close paren cubed
D
2 cubed is equal to log sub 3 of open paren x plus 5 close paren squared

Explanation

By the definition of a logarithm, log₃(x + 5) = 2 means that 3 raised to the power 2 equals x + 5. Therefore, the equivalent equation is 3² = x + 5, choice B.

AI-written and checked against the verified answer.

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