Question

Which equation is NOT a linear function?

Answer 1

y=x^2 -2

Explanation:

This will result in a parabola, which does not fit the description of a linear function.

Answer 2

y=x^2-2

Explanation:

Linear functions have a constant slope, so nonlinear functions have a slope that varies between points. Algebraically, linear functions are polynomials with highest exponent equal to 1 or of the form y = c where c is constant. Nonlinear functions are all other functions. An example of a nonlinear function is y = x^2