Extended Algebra 2B Exam Review

What is the y-intercept of the function f(x) = x² - 7x + 15?

• (0, 15)

• (0, -7)

• (7, 0)

• (-7, 15)

Tags

CCSS.HSF-IF.C.7A

Does the function f(x) = -x² + 3x - 1 have a maximum or minimum value?

• Maximum

• Minimum

• Neither

• Both

What are the solutions of the quadratic equation x² - x - 20 = 0?

• -4 and 5

• -4 and -5

• -5 and 4

• 5 and 6

Tags

CCSS.HSA-REI.B.4B

Write a quadratic equation in standard form with roots 5 and 6.

• x² - 11x + 30 = 0

• x² + 11x + 30 = 0

• x² - 11x - 30 = 0

• x² + 11x - 30 = 0

What is the factored form of the equation x² - x - 12 = 0?

• (x + 3)(x - 4) = 0

• (x - 3)(x + 4) = 0

• (x - 8)(x + 4) = 0

• (x + 2)(x - 6) = 0

Tags

CCSS.HSA-REI.B.4B

Simplify the expression (2 - i) + (13 + 4i).

• 15 + 3i

• 11 + 5i

• 15 - 3i

• 11 - 5i

Tags

CCSS.HSN.CN.A.2

What is the discriminant of the quadratic equation 2x² + 3x - 18 = 0?

• 81

• 153

• 69

• -69

Tags

CCSS.HSA-REI.B.4B

What is the vertex form of the quadratic function y = 2x² + 12x - 8?

• y = 2(x + 3)² - 26

• y = 2(x - 6)² + 8

• y = 2(x + 6)² - 44

• y = 2(x - 3)² + 26

Solve the quadratic inequality x² + 8x + 12 > 0

• 8 < x < 12

• x < 8 or x > 12

• x < -6 or x > -2

• -6 < x < -2

What is the axis of symmetry for the quadratic function y = -3(x - 1)² + 5?

• x = 1

• x = -1

• x = 3

• x = -3