Solving Quadratic and a Straight Line Graphically

Solve by graphing:

2x² + 17x + 21 = 0

• x= ^-21/₂ or x = -17

• x= ²/₃ or x = 16

• x=-7 or x = ^-3/₂

• x=15 or x = -³/₇

Solve by graphing: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

Select the solutions to the equation

2x² - 3x - 2 = 0

• x = 2

• x = -0.5

• x = - 3

• x = - 2

Select the solutions to the equation

2x² - 13x + 15 = 0

• x = 1.5

• x = 5

• x = - 6

• x = 2

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

Select the solutions to the equation

x² - 7x + 5 = 0

• x = 0.6

• x = -1

• x = -1.2

• x = -1.6

Select the solutions to the equation

x² - 2x - 13 = 0

• x = -2.7

• x = -9.5

• x = 4.7

• x = -14.2

Select the solutions to the equation

x² - x + 1 = 7

• x = 0

• x = 1

• x = -2

• x = 3

Select the solutions to the equation

x² + 3x + 2 = 11

• x = -4.9

• x = 1.9

• x = -1

• x = -2