# Blog

### What is 0 on a Graph? Explanation and Examples

ContentsWhat Is Meant by 0 on a Graph?$(0,0)$ On a Graph Is the Reference PointZero on a Graph and Zero FunctionHow To Draw y=0 on a GraphProperties

### What Is the Integral of Arctan x And What Are Its Applications?

ContentsWhat Is the Integral of Arctan(x)?Constant of IntegrationHow To Find the Integral of Arctan xIntegration by Parts and Arctan xHow to Use the

### When Does a Quadratic Function Have No Real Solution?

ContentsWhen Does a Quadratic Function Have No Real Solution?Calculating the DiscriminantLooking at the GraphLooking at the CoefficientsDoes the

### What Is -b/2a and Why Is It Important in Math?

ContentsWhat Is -b/2a?Why Is -b/2a Important in Quadratic Equation?Why Is -b/2a Important in Vertex Formula?How To Prove the Vertex Formula and

### Descartes Rule of Signs in Finding Roots of a Polynomial

ContentsWhat Is Descartes Rule of Signs?Advantage of Using This MethodHow To Use Descartes Rule of SignsExample 1Example 2Example 3FAQIs Descartes