Final answer:
The parent square root function has key points where the input and output values are related.
Step-by-step explanation:
The parent square root function is defined by the equation y = √x, where y represents the output or dependent variable, and x represents the input or independent variable.
The parent function has several key points:
When x = 0, y = 0.
When x = 1, y = 1.
When x = 4, y = 2.
When x = 9, y = 3.
When x = 16, y = 4.
These points indicate that as the input (x) increases, the output (y) also increases, but at a decreasing rate.