Algebra 2 Semester 2 Finals Review

Factor completely: 3x²-36x+96 (ch. 7A)

• (x-4)(x-8)

• 3(x-4)(x-8)

• 3(x+1)(x+32)

• 3(x-2)(x+16)

When factoring

x² - 4x + 4 = 20,

what goes in the blank?

(x - __ )² -20 = 0 (think completing the square- ch. 7A)

• 4

• 2

• 8

• 20

What is one of the solutions to this equation? (ch. 7A)

(2x - 1)² = 49

• 7

• -7

• -4

• -3

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation

s(t) = –16t² + 64t + 80.

What will be the object's maximum height? (ch. 7B)

• 2 ft

• 80 ft

• 144 ft

• 64 ft

At what time would you reach 16 ft above the water if you jump of a cliff using the formula: (ch. 7B)

h = -16t² + 8t + 24?

• 8

• 1

• 1/2

• 1/4

The end behavior of a polynomial function is determined by the degree and the sign of the leading coefficient.

Identify the degree of the polynomial and the sign of the leading coefficient (ch. 7C)

• Leading Coefficient Positive

  Degree - Even

• Leading Coefficient Positive

  Degree - Odd

• Leading Coefficient Negative

  Degree - Even

• Leading Coefficient Negative

  Degree - Odd

(2x³ + 5x² + 9) ÷ (x + 3) -think synthetic division ch.7C

• 2x² - x + 3

• 2x³ - x² + 3x

• 2x² + 11x + 33 + 108/x+3

• 2x² - 5x + 12

Multiply (ch. 8)

• A.

• B.

• C.

• D.

There are 125 juniors at the high school. How many ways can they elect a president, vice president,and secretary? (Ch. 10A)

• 1906500

• 317750

• 375

• 1953125

A coin is flipped 3 times. If you get tails once you get $5, tails twice you get $15, and tails on all three flips you get $40. What is the expected amount of money you will get? (ch. 10B)

• $12.50

• $5

• $7.50

• $10