20.1 Non-linear equations
Do better in math today

Start my free trial

Non-linear equations

Non-linear equations, as it says in its name, are any functions that are not linear, for example, quadratic, circle and exponential functions. In this lesson, we will learn how to graph nonlinear equations, and then determine whether they are a function or not. The easiest way to verify if an equation is a function, no matter if it is linear or non-linear, is by using the vertical line test.


: Basically any function that is not "linear equation", such as quadratic, circle, reciprocal, exponential, etc.
    • a)
      y=x2+2y = x^2 +2
    • b)
      x=12y2x = {1 \over 2} y^2
    • c)
      y=2xy = {2 \over x}
    • d)
      y=x2y = \sqrt {x - 2}
    • e)
      y=x32y = x^3 - 2
    • f)
      x2y2=9x^2 - y^2 = 9
Teacher pug

Introduction to nonlinear equations

Don't just watch, practice makes perfect.

We have over 3040 practice questions in Math 8 for you to master.