Questions: Graph the equation shown below by transforming the given graph of the parent function.
y=4 sqrt(x-1)
Transcript text: Graph the equation shown below by transforming the given graph of the parent function.
\[
y=4 \sqrt{x-1}
\]
Solution
Solution Steps
Step 1: Identify the Parent Function
The parent function for the given equation \( y = 4\sqrt{x} - 1 \) is \( y = \sqrt{x} \).
Step 2: Apply Vertical Stretch
The coefficient 4 in \( y = 4\sqrt{x} - 1 \) indicates a vertical stretch by a factor of 4. This means that each y-coordinate of the parent function \( y = \sqrt{x} \) is multiplied by 4.
Step 3: Apply Vertical Shift
The term \(-1\) in \( y = 4\sqrt{x} - 1 \) indicates a vertical shift downward by 1 unit. This means that each y-coordinate of the vertically stretched function is decreased by 1.
Final Answer
The graph of the equation \( y = 4\sqrt{x} - 1 \) is obtained by vertically stretching the parent function \( y = \sqrt{x} \) by a factor of 4 and then shifting it downward by 1 unit. The resulting graph is shown in the image provided.