Questions: Determine whether the equation represents exponential growth, exponential decay, or neither.
y=300(1.05)^x
growth decay neither
Transcript text: Determine whether the equation represents exponential growth, exponential decay, or neither.
\[
y=300(1.05)^{x}
\]
growth decay neither
Solution
Solution Steps
To determine whether the equation represents exponential growth, exponential decay, or neither, we need to examine the base of the exponential function. If the base is greater than 1, it represents exponential growth. If the base is between 0 and 1, it represents exponential decay. If the base is equal to 1, it is neither growth nor decay.
Step 1: Identify the Exponential Function
The given equation is \( y = 300(1.05)^x \). This is an exponential function of the form \( y = a \cdot b^x \), where \( a = 300 \) and \( b = 1.05 \).
Step 2: Determine the Base of the Exponential Function
The base of the exponential function is \( b = 1.05 \).
Step 3: Analyze the Base to Determine Growth or Decay
If \( b > 1 \), the function represents exponential growth.
If \( 0 < b < 1 \), the function represents exponential decay.
If \( b = 1 \), the function is neither growth nor decay.
Since \( b = 1.05 \) and \( 1.05 > 1 \), the function represents exponential growth.