Alg 2 Chapter 3 Review

What is the equation of the axis of symmetry of f(x) = 3x² - 12x + 7 ?

• x = 2

• 2

• x = -2

• -4

Does f(x) = 3x² - 12x + 7 have a maximum or a minimum?

• maximum

• minimum

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept of f(x) = 3x² - 12x + 7 ?

• 3

• -12

• 7

• -7

What is the vertex of y = -x² - 4x + 5 ?

• (-4, 5)

• (-2, 9)

• (2, -7))

• (-2, 19)

Which quadratic function has roots 4 and -5 ?

• f(x) = x ² - x - 20

• f(x) = x ² + x - 20

• f(x) = (x + 4)(x - 5)

• f(x) = x ² + 4x - 5

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the value of c that makes x² + 8x + c a perfect square trinomial?

• 16

• 64

• 8

• 4

Tags

CCSS.HSA-REI.B.4B

How many and what type of zeros does f(x) = 2x² - 7x - 15 have?

• 2 real, rational zeros

• 1 real, rational zero

• 2 real, irrational zeros

• 2 complex zeros

How many and what type of zeros does f(x) = -3x² - 18x - 27 have?

• 2 real, rational zeros

• 1 real, rational zero

• 2 real, irrational zeros

• 2 complex zeros

How many and what type of zeros does f(x) = 2x² - 20x + 60 have?

• 2 real, rational zeros

• 1 real, rational zero

• 2 real, irrational zeros

• 2 complex zeros

Simplify fully: ( 3 - 2i )( 3 + 2i )

• 9 - 4i ²

• 13

• 9 - 12i - 4i ²

• 5

Tags

CCSS.HSN.CN.C.8