Quadratic mixed quiz

Find the vertex of the parabola y = 2x^2 - 8x + 5.

• The vertex is at (2, -3)

• The vertex is at (-3, 2)

• The vertex is at (0, 5)

• The vertex is at (5, 2)

Calculate the discriminant of the quadratic equation 3x^2 + 4x - 5 = 0.

• 0

• -2

• 11

• 56

Tags

CCSS.HSA-REI.B.4B

Determine the roots of the equation 2x^2 - 7x + 3 = 0.

• x = -1 or x = -3/2

• x = 2 or x = 1/2

• x = 1 or x = 3/2

• x = 4 or x = 5/2

Tags

CCSS.HSA-REI.B.4B

Solve the inequality x^2 - 6x + 8 > 0.

• 2 < x < 4

• x < 0

• x < 2

• x > 4

What is the vertex form of the quadratic equation y = x^2 - 4x + 3?

• y = (x - 2)^2 - 1

• y = (x - 1)^2 + 2

• y = (x + 2)^2 - 1

• y = (x - 3)^2 + 4

Find the discriminant of the quadratic equation 4x^2 - 12x + 9 = 0.

• 12

• 36

• 0

• -24

Tags

CCSS.HSA-REI.B.4B

Determine the roots of the equation x^2 + 5x + 6 = 0.

• The roots are x = 2 and x = 3

• The roots are x = -1 and x = -6

• The roots are x = -2 and x = -3

• The roots are x = 0 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve the inequality 3x^2 - 2x - 8 < 0.

• (-∞, -2/3) U (-2, ∞)

• (-∞, -2/3) U (2, ∞)

• (-∞, -2/3) U (2, 3)

• (-∞, -2/3) U (2, ∞)

What is the vertex of the parabola y = -2x^2 + 4x - 3?

• The vertex is (1, -5)

• The vertex is (-2, 7)

• The vertex is (0, -3)

• The vertex is (3, -1)

Calculate the discriminant of the quadratic equation 2x^2 - 3x + 1 = 0.

• -7

• 5

• 0

• 3

Tags

CCSS.HSA-REI.B.4B