### Home > A2C > Chapter Ch4 > Lesson 4.2.1 > Problem 4-71

4-71.

Write the equation *y* = *x*^{2} + 7*x* − 8 in graphing form. Use what you learned about finding the vertex in Lesson 4.1.3 to help you. Homework Help ✎

Complete the square. See the online help for problem A2C 4-40 part (a) if you need help.

The equation is *y* = (*x* + 3.5)^{2} − 20.25.