Keystone Algebra I Practice

Which expression represents four less than half a number, n

• 4 - 1/2n
• 1/2n - 4
• 1/2 ( 4 - n)
• 1/2 ( n - 4)

Which of the following binomials is a factor of x² - x - 6

• x - 1
• x - 2
• x - 3
• x - 6

• B
• A & C
• B & C
• A & D

• 8 √2
• 64√2
• 4√8
• 16√8

• a⁹/ b⁴
• b⁴ / a⁹
• a⁴ / b³ 
• a⁹ b⁴ 

• -42
• -18
• 18
• 42

• A
• B
• C
• D

• A
• B
• C
• D

Which equation represents the line that passes through the points ( -4, 4) and (8, -2) ?

• y= -2x + 14
• y= -2x - 4
• y= -1/2x + 2
• y= -1/2x - 2

• A
• B
• C
• D