### Home > CCA2 > Chapter 2 > Lesson 2.1.1 > Problem 2-9

2-9.

Write the equation for each graph. 2-9 HW eTool (Desmos). Homework Help ✎.

a. | What is the | b. | Refer to part (a). |

c. | Which value ( All vertical lines have undefined slope and an equation of the form | d. | Refer to part (a). |

Use the eTool below to check your answers by graphing your equation.

Click the link at right for the full version of the eTool: CCA2 2-9 HW eTool