Quadratic Equations

What are the roots of x² - x - 6 = 0?

• 3

• 2

• -3

• -2

What is the solution set of 2x(x - 1) = 2?

What must be added to 2x² + 7x + 3 = 0 to make it a PST?

What is the solution set of 2x² - x - 1 = 0?

• {1, 1/2}

• {1, -1/2}

• {-1, 1/2}

• {-1, -1/2}

What are the zeros of this graph?

• x = {-4, 2}

• (-4, 0 ) and (2, 0)

• x = {-1, 0}

• (-1, 9 ) and (0, -8)

If each mark on the x-axis represents one second, when did the object reach the ground?

• 2.5 seconds
• 6 seconds
• 5.5 seconds
• 5 seconds

Solve the equation by factoring.

• x = {-5,-3}

• x = {5,-3}

• x = {-5,3}

• x = {5,3}

• ±72
• ±12
• 12
• No real solution

Does this graph have any roots?

• yes

• no

• I am not sure.

Does this parabola have a maximum or minimum?

• Maximum
• Minimum