A110­3SolvingQuadEq.notebook April 27, 2015 Algebra 1 Ch.10 Notes Page 58 P58 10­3 Solving Quadratic Equations Sep 2­8:31 AM Finding the Solutions (Roots or Zeros) of a Quadratic Equation 0 = ax2 + bx + c The solutions are the x­intercepts of the equation. There can be 0, 1, or 2 Solutions to a Quadratic Equation. Apr 30­8:41 AM 1 A110­3SolvingQuadEq.notebook April 27, 2015 Solving by Graphing 2 y = x 2 y = x ­ 4 y = x2 + 4 Apr 30­8:41 AM Solving by Graphing y = x2 ­ 4 May 7­8:25 AM 2 A110­3SolvingQuadEq.notebook April 27, 2015 Solving by Square Roots 2x2 ­ 98 = 0 3n2 + 12 = 60 2y2 ­ 32 = 0 Apr 30­8:41 AM Solving by Square Roots There is NO SOLUTION if you have to take the Square Root of a Negative Number. x2 + 10 = 0 2n2 + 10 = 6 4y2 + 32 = 0 May 7­8:36 AM 3 A110­3SolvingQuadEq.notebook April 27, 2015 HW #71 10­3 P567 #1­18 Please put your name and class period at the top of the homework. Also include the homework number. Nov 19­2:29 PM Apr 21­8:42 AM 4