Quadratic Functions
Graphing quadratic functions
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1) Graphing quadratic functions, explanation and practice: http://www.mathsisfun.com/algebra/quadratic-equation-graphing.html
2) Graphing quadratic functions, textbook style: http://www.purplemath.com/modules/grphquad.htm
3) Axis of symmetry: http://www.mathwarehouse.com/geometry/parabola/axis-of-symmetry.php
2) Graphing quadratic functions, textbook style: http://www.purplemath.com/modules/grphquad.htm
3) Axis of symmetry: http://www.mathwarehouse.com/geometry/parabola/axis-of-symmetry.php
Solving quadratic equations
1) Methods of solving quadratic equations: http://www.mathwarehouse.com/quadratic/solve-quadratic-equation.php
2) How many roots/solutions will a quadratic function have? Hint: Discriminant: http://www.mathwords.com/d/discriminant_quadratic.htm
3) Finding the complex roots of a quadratic equation: http://www.regentsprep.org/regents/math/algtrig/ATE3/quadcomlesson.htm
2) How many roots/solutions will a quadratic function have? Hint: Discriminant: http://www.mathwords.com/d/discriminant_quadratic.htm
3) Finding the complex roots of a quadratic equation: http://www.regentsprep.org/regents/math/algtrig/ATE3/quadcomlesson.htm
Completing the Square
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1) Completing the square: http://www.mathsisfun.com/algebra/completing-square.html
2) Completing the square: http://www.purplemath.com/modules/sqrquad.htm
2) Completing the square: http://www.purplemath.com/modules/sqrquad.htm
Discriminant
1) Finding the discriminant: http://www.regentsprep.org/regents/math/algtrig/ate3/discriminant.htm
2) Video: https://www.khanacademy.org/math/algebra2/polynomial_and_rational/quad_formula_tutorial/v/discriminant-of-quadratic-equations
2) Video: https://www.khanacademy.org/math/algebra2/polynomial_and_rational/quad_formula_tutorial/v/discriminant-of-quadratic-equations
FACTORING
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1) Factoring to find the roots: http://www.mathsisfun.com/algebra/factoring-quadratics.html
2) Practice solving by factoring: https://www.khanacademy.org/math/algebra/quadratics/factoring_quadratics/e/solving_quadratics_by_factoring
3) Solving quadratic equations by factoring: http://www.purplemath.com/modules/solvquad.htm
4) PRACTICE: http://www.regentsprep.org/regents/math/algebra/ae5/pfaceq.htm 5) Solving by factoring PRACTICE: http://www.ixl.com/math/algebra-1/solve-a-quadratic-equation-by-factoring
6) Solving by factoring EXPLANATION & VIDEO: http://www.mathwarehouse.com/quadratic/solve-quadratic-equation-by-factoring.php
7) Quadratic equation solver, to check answers: http://www.mathsisfun.com/quadratic-equation-solver.html
2) Practice solving by factoring: https://www.khanacademy.org/math/algebra/quadratics/factoring_quadratics/e/solving_quadratics_by_factoring
3) Solving quadratic equations by factoring: http://www.purplemath.com/modules/solvquad.htm
4) PRACTICE: http://www.regentsprep.org/regents/math/algebra/ae5/pfaceq.htm 5) Solving by factoring PRACTICE: http://www.ixl.com/math/algebra-1/solve-a-quadratic-equation-by-factoring
6) Solving by factoring EXPLANATION & VIDEO: http://www.mathwarehouse.com/quadratic/solve-quadratic-equation-by-factoring.php
7) Quadratic equation solver, to check answers: http://www.mathsisfun.com/quadratic-equation-solver.html
QUADRATIC FORMULA
1) Explanation, textbook style: http://www.purplemath.com/modules/quadform.htm
2) Quadratic formula, SONG: http://www.youtube.com/watch?v=z6hCu0EPs-o
2) Solving using the quadratic formula PRACTICE: http://www.ixl.com/math/algebra-1/solve-a-quadratic-equation-using-the-quadratic-formula
2) Quadratic formula, SONG: http://www.youtube.com/watch?v=z6hCu0EPs-o
2) Solving using the quadratic formula PRACTICE: http://www.ixl.com/math/algebra-1/solve-a-quadratic-equation-using-the-quadratic-formula