Questions: log4 p = 3
log4 q = x
If log4 pq - log4 256 = a x - b, then the values of a= and b= Show work.
Transcript text: \[
\begin{array}{l}
\log _{4} p=3 \\
\log _{4} q=x
\end{array}
\]
If $\log _{4} p q-\log _{4} 256=\boldsymbol{a} x-\boldsymbol{b}$, then the values of $\mathrm{a}=$ $\qquad$ and $\mathrm{b}=$ $\qquad$ Show work.
Solution
Solution Steps
Step 1: Express \( p \) and \( q \)
From the given equations, we have:
\[
\log_{4} p = 3 \implies p = 4^3 = 64
\]
\[
\log_{4} q = x \implies q = 4^x
\]
Step 2: Calculate \( \log_{4}(pq) \) and \( \log_{4}(256) \)
Using the properties of logarithms:
\[
\log_{4}(pq) = \log_{4}(64 \cdot 4^x) = \log_{4}(64) + \log_{4}(4^x) = 3 + x
\]
Next, we calculate \( \log_{4}(256) \):
\[
\log_{4}(256) = \log_{4}(4^4) = 4
\]
Step 3: Formulate the Expression
Now, we can form the expression:
\[
\log_{4}(pq) - \log_{4}(256) = (3 + x) - 4 = x - 1
\]
We need to compare this with the form \( ax - b \).
Step 4: Identify \( a \) and \( b \)
From the expression \( x - 1 \), we can see that:
\[
a = 1 \quad \text{and} \quad b = 1
\]
Final Answer
Thus, the values of \( a \) and \( b \) are:
\[
\boxed{a = 1, \, b = 1}
\]