Example Question - nonlinear function

Understanding Quadratic Functions

The equation given in the image is \( y = x^2 + 9 \). This equation represents a quadratic function, which is a type of nonlinear function. The nonlinearity is because the variable \( x \) is raised to the second power. Therefore, the correct answer to the question "Which statement explains the type of function that is represented by the equation \( y = x^2 + 9 \)?" is: D) The function is nonlinear because the variable \( x \) is raised to the second power.