1. B ELLWORK Factor each of the following: 1.x 2 + 4x + 4 2.x 2 + 12x + 27 3.6x 2 + 23x + 21 (yes it works :) ) 4.x 2 + x - 42

2. H OMEWORK A NSWERS

5. 10.2 S OLVING Q UADRATIC E QUATIONS BY G RAPHING Algebra 1

6. Q UADRATIC E QUATION Quadratic Equation related to the quadratic function, in that it has the same form, with the exception of y being replaced with a 0 Roots the solution of a quadratic equation Zeros the x-intercepts of a quadratic equation (this is what is used to find the roots)

7. E XAMPLES 1. Solve x 2 - 3x - 10 = 0 by graphing.

9. E XAMPLES 2.Solve x 2 - 6x = - 9

10. E XAMPLES 3.Solve x 2 + 2x + 3 = 0

11. E XAMPLES 4.Solve x 2 +4x = - 4

12. 10.2 S TUDY G UIDE AND I NTERVENTION