Determine Whether the Equation Defines Y as a Function of X

question 122

Multiple Choice

Determine whether the equation defines y as a function of x.
- $$x = y ^ { 2 }$$

• A) function
• B) not a function

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Definitions:

Perfect Correlation

A relationship between two variables where one variable can be perfectly predicted from the other.

Correlation Coefficient

A numerical measure that indicates the strength and direction of a linear relationship between two quantitative variables.

Least Squares Line

A straight line that minimizes the sum of the squares of the differences between the observed and predicted values.

Coefficient Of Determination

A statistical measure, often symbolized as R^2, that represents the proportion of the variance in the dependent variable predictable from the independent variable(s).