Questions: Change each equation to its equivalent logarithmic form.
(a) 9^(4z) = 4
(b) e^z = 6
(c) c^Z = f
(a) Find the equivalent equation for 9^(4z) = 4.
Transcript text: Change each equation to its equivalent logarithmic form.
(a) $9^{4 z}=4$
(b) $e^{z}=6$
(c) $\mathrm{c}^{\mathrm{Z}}=\mathrm{f}$
(a) Find the equivalent equation for $9^{4 z}=4$.
Solution
Solution Steps
To convert an exponential equation to its equivalent logarithmic form, we use the property that if \( a^b = c \), then the equivalent logarithmic form is \( \log_a(c) = b \). We will apply this property to each of the given equations.
Step 1: Convert \( 9^{4z} = 4 \) to Logarithmic Form
Using the property of logarithms, we can rewrite the equation \( 9^{4z} = 4 \) in logarithmic form as follows:
\[
\log_{9}(4) = 4z
\]
Step 2: Convert \( e^{z} = 6 \) to Logarithmic Form
For the equation \( e^{z} = 6 \), we apply the same logarithmic property:
\[
\log_{e}(6) = z
\]
This can also be expressed as:
\[
z = \ln(6)
\]
Step 3: Convert \( c^{Z} = f \) to Logarithmic Form
Finally, for the equation \( c^{Z} = f \), we convert it to logarithmic form:
\[
\log_{c}(f) = Z
\]
Final Answer
The equivalent logarithmic forms are:
\( \log_{9}(4) = 4z \)
\( z = \ln(6) \)
\( \log_{c}(f) = Z \)
Thus, the answers are:
\[
\boxed{\log_{9}(4) = 4z, \quad z = \ln(6), \quad \log_{c}(f) = Z}
\]