Question

Which of the following rewritten logarithms uses the Power Rule of Logarithms to evaluate log1045
?(1 point)

45 log10


−54 log10


54 log10


−45 log10

Answer 1

Interpret the expression as log_10(4^5). By the Power Rule, log_b(a^c) = c·log_b(a), so

log_10(4^5) = 5·log_10(4).

(Answer: 5 log_10 4 — the option shown as "54 log10".)