Solving Quadratics by Graphing

Solve quadratic equations by graphing! Practice finding roots and solutions.

Find all solutions to the quadratic equations below. x2 + 15x + 50 x = -10 x=-5 x2 - 11x + 28 x = 4 x = 7 x2 - 11x + 24 x = 3 x = 8 x2 - 4x - 20 - 3x - 24 x = -4 x = 11 x2 - 36 x = 6 x = -6 x2 - 16x + 61 - 2x + 20 x = 9 Find all roots of the quadratics. x2 - 5x - 14 x = -2 x = 7 x2 + 13x + 12 x = -12 x = -1 x2 + 32 - 12x x = 4 x = 8 x2 - 6x - 27 x = -3 x = 9 20x2 + 3x - 1 - 5x2- 5x x = -1 x = 1 9x2 + 17x + 20 - 4 + 7x x = -4 Match the zeros to their quadratic equation. 19x - 7 + 6x2 x = -3.5 x = 1 6x2 - x - 5 x = -5 x = 1 7x2 + 19x - 6 x = -3 x = 2 4x2 + 15x + 6 - 4x x = -2 x = -3 6x2 - 11x + 15 - 12x + 5 x = 4 x = 2.5 x2 - 4x + 16 - 4x x = 4 How many solutions does this graph have? no solutions one solution two solutions five solutions Which expression is equivalent to x2+ 15x - 54 ? (x+18)(x-3) (x+9)(x-6) (x-9)(x+6) (x-18)(x+3)