### Home > A2C > Chapter 8 > Lesson 8.1.5 > Problem 8-83

8-83.

Change each of the following equations to graphing form and then, without graphing, identify the vertex and axis of symmetry for each. Homework Help ✎

*y*= 3*x*^{2}−18*x*+ 26*y*= 3*x*^{2}− 4*x*− 11

Complete the square to get the equation in graphing form.

The axis of symmetry is the same as the *x*-coordinate of the vertex.

vertex: (3, −1)

axis of symmetry: *x* = 3