Quiz: Solve Quadratics All Methods

We solve quadratic equations to find where the graph touches the x-axis. Which of the following is another name for the x-intercept? Select all that apply

• y-intercept

• Zero

• Asymptote

• Roots

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6

• x = 3 and x = -6

• x = -9 and x = 2

• x = 9 and x = -2

Solve by Square Roots:

x² - 4 = 77

• 9

• -9

• No Real Solutions

• 9, -9

Solve by completing the square:
k² − 12k + 23 = 0

• {6 + √13, 6 - √13}

• {-6 + √13, -6 - √13}

• {6 + √59, 6 - √59}

• {-6 + √59, -6 - √59}

Solve Using the Quadratic Formula 
2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5